S i b ba l d i a : The Journal of Botanic Garden Horticulture, No. 6
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T h e Om a n Bota n ic Ga r de n (1): T h e V ision, E a r ly Pl a n t Col l e c t ions a n d Propagat ion Annette Patzelt1, Leigh Morris2, Laila Al Harthi1, Ismail Al Rashdi1 & Andrew Spalton3
a b st r ac t
The Oman Botanic Garden (OBG) is a new botanic garden which is being constructed on a 423ha site near to Muscat, the capital of Oman. Oman is floristically rich and is considered a centre of plant diversity in the Arabian Peninsula. The plan is that OBG will showcase this plant diversity, inform visitors of its value and provide a model for sustainability. This paper, part 1, covers the vision, early plant collections and propagation, and part 2, which will be included in Sibbaldia No. 7, will cover design, construction, interpretation and planting.
T h e Si t e
The Oman Botanic Garden (OBG), which is currently under construction, is to be a brand new, iconic botanic garden in the Sultanate of Oman. It is to be located on 423 hectares of natural habitat at Al Khoud, just to the west of the capital Muscat (Fig. 1). On the northern side of the site is a range of hills up to 281m high and within the site are a number of smaller hills (up to 170m). There are three wadis that cross the site, the largest of which is Wadi Sidr, which contains some pools of water throughout the year. The overall wide range of ground conditions will enable a large number of species to be grown within OBG, making it an excellent choice of location. The site is remarkably green at certain times of the year and its most distinctive flora is the open woodland that dominates the wadi areas. The predominant species within this habitat is Acacia tortilis, but with occasional Acacia ehrenbergiana, Prosopis cineraria and Ziziphus spina-christi. O m a n – A R e g i o n a l Bi o d i v e r s i t y Hotspot
The flora of Oman is floristically rich with a high degree of endemism. In the Sultanate of Oman c. 1,200 species of vascular plants are presently known (Miller & Cope, 1996). Annette Patzelt is the Senior Botanist at the Oman Botanic Garden. Email:
[email protected] Laila Al Harthi is a botanist at the Oman Botanic Garden. Ismail Al Rashdi is a horticulturist at the Oman Botanic Garden. Address: Oman Botanic Garden, Office for Conservation of the Environment, Diwan of Royal Court, P.O. Box 246, Muscat P.C. 100, Sultanate of Oman. 2 Leigh Morris is Head of Education at the Royal Botanic Garden Edinburgh. Address: Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR. Email:
[email protected] 3 Andrew Spalton is the Adviser for Conservation of the Environment at the Diwan of the Royal Court, Oman. Address: Adviser for Conservation of the Environment, Diwan of Royal Court, P.O. Box 246, Muscat P.C. 100, Sultanate of Oman. 1
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Fig. 1 A section of the 423ha site for the Oman Botanic Garden. Photo: Annette Patzelt.
Oman is a centre of plant diversity in the Arabian Peninsula, with 15.8% of the flora being range-restricted (Patzelt, 2008). Southern and central Oman have been identified as one of the world’s 35 key biodiversity hotspots – areas that contain at least 1,500 endemic species of vascular plants (> 0.5% of the world’s total), and where at least 70% of the natural vegetation has been lost (Mittermeier et al., 2005). Of the total of 189 range-restricted species, 78 species are strictly endemic to the country, 48 are nearendemics and 63 are regional endemics (Patzelt, 2008). There are currently 2,204 botanic gardens known in the world in 153 countries, but there are very few in the Middle East and South-West Asia (BGCI, 2001), although the area accounts for an estimated 58,500 species. OBG will be the sole garden in the area and aims to achieve a comprehensive ex situ conservation collection of native plants. V i s i o n a n d Ov e r a l l A i m
The vision is that “the Oman Botanic Garden as a new world class botanic garden conserves the unique botanical and ethnobotanical heritage of Oman and to ensure that the flora, heritage and ecosystems of Oman are valued by all”. The garden has the unique aim of propagating and displaying the complete indigenous flora of the Sultanate of Oman, within defined habitat zones (including large, iconic, environmentally controlled biomes for northern and southern flora), and aims to sustainably address the urgent need for conservation solutions to the biodiversity crisis. The representation of a native flora in habitats has not had a prominent place in most botanic gardens. With both an interest in target 8 of the Global Strategy for Plant
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Conservation and the development of a habitat-based garden, the OBG represents a new model for botanic gardens in the 21st century and is a groundbreaking initiative of ex situ conservation in Arabia. OBG sees its role in providing a model with conservation and sustainability at the forefront of its messages and the experience gained of vital importance for other major new gardens in development across Arabia. S p e c i f i c G oa l s
OBG has a number of major objectives, as follows:
• Value the unique flora and ethnobotany of Oman • Reflect and honour Oman’s heritage • Create an international ‘must see’ iconic visitor destination • Provide a model for sustainability • Exemplify the unique hospitality of Oman • Lead the development of botanic gardens in Arabia • Develop a cadre of professional Omani staff to manage the OBG • Provide a major education resource in the field of biodiversity conservation • Present and interpret exhibits of indigenous plant species and local cultivated crops, their habitats, traditional knowledge and animal–plant interactions • Promote the use of indigenous plants for ornamental horticulture. K ey Ch a llenges
OBG faces three broad key botanical and horticultural challenges during its development phase:
• Building up horticultural expertise in the team and the development of standard protocols in all areas of plant propagation and collection management for all Omani plants, including a wide range of range-restricted and threatened species. • Identifying key botanical questions within the Omani flora and the development of the OBG team to be able to prioritize and answer them. Defining and developing the scientific impact of OBG in the wider ex situ • conservation of Arabian plants and in the overall delivery on the Global Strategy for Plant Conservation (GSPC). The development of such a botanic garden from scratch presents an outstanding example of ex situ conservation being undertaken in a botanic garden with national, regional and international significance. The planning for the development of OBG commenced in 2004. A master plan was submitted in 2006, the design finalized in 2008 and construction of phase one, the nursery, started at the beginning of 2008.
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Fig. 2 Initial OBG propagation space was rented from a commercial nursery at Seeb, Muscat. Photo: Leigh Morris. I n i t i a l P ro d u c t i o n N u r s e ry
Overall, plant collections at OBG will eventually comprise of a living collection, seed bank, herbarium and also a digital herbarium. The initial priority for OBG, however, has been the propagation of the c. 400,000 indigenous and endemic living plants that are required for the planting of the habitat zones and all other planted areas within OBG. It is fundamental that when the OBG opens, the garden looks relatively established and contains as wide a selection of the Omani flora as possible. Prior to the OBG project, very few Omani plants were in nursery cultivation. There are small nurseries in and around Muscat but these predominantly produce exotic plants for the ornamental market. The existence of these nurseries, however, proved to be extremely valuable to OBG, as space was rented within one for the propagation of Omani plants (Fig. 2). So, in early 2006, through these modest rented facilities and a single member of staff, OBG had a physical presence. Since then, both the OBG nursery team and the number of plants have increased and by June 2008 there were 20 staff and 51,851 individual plants on two rented nursery sites. This already therefore represented the largest documented Arabian plant collection. P l a n t Co l l e c t i o n
One of the key objectives of OBG is to cultivate and display only Omani plants and due to the lack of any significant numbers already in cultivation, this gave the OBG team the challenge of collecting all plant material from the wild. Diversity was of major importance, so collections were predominantly from seed; however, whole living plants and cuttings were also collected for certain species (but from a wide range of mother plants).
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Fig. 3 Seed collection on Jabal Samhan in the Dhofar region of Oman being carried out by an OBG team member. Photo: Leigh Morris.
Fig. 4 RBGE’s Leigh Morris training OBG staff in the collection of vegetative propagation material on Jabal Al Akhdar (December 2006). Photo: Annette Patzelt.
Seeds were collected in a standard way (Fig. 3) into fabric bags and stored in boxes for transport. On longer field trips the seed drying process started in the field, usually by hanging the bags in shady and slightly breezy locations. The collection and propagation of vegetative material (cuttings and whole plants) proved more of a challenge in such a hot climate but, through collaboration with Royal Botanic Garden Edinburgh (RBGE) horticulturists, successful protocols were developed involving the correct selection of material (Fig. 4) and the use of moist sealable plastic bags and cool-boxes.
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Fig. 5 Dr Annette Patzelt inputting collection data into the database in the field. Photo: Leigh Morris.
A fundamentally important part of the plant collection process was the gathering and recording of information on all the plants, including date of collection, name(s) of collectors, location (GPS coordinates; longitude, latitude and altitude), locality, type of material, life form, soil type, associated flora, local uses and descriptions. Voucher herbarium specimens, material for genetic analysis and photographs were also collected. The vouchers are stored in the OBG’s herbarium. Temporary labels were used during transportation and much of the information was typed straight into the database on a lap-top computer in the field (Fig. 5). The database allows a link from the living collection to the herbarium voucher, to provide a back-up specimen should the living material fail for any reason. P ropag at i o n T e c h n i q u e s
After transport to the OBG nursery seeds were dried, cleaned and stored in the dark at room temperatures. Species from the high mountain areas in northern Oman were stored in a dark fridge at 10°C to provide stratification. A seed processing form was developed that remains with the seed lot from the moment it arrives in the garden until the seeds are sown. Prior to germination seeds are soaked in water for 24 hours and then directly sown into standard 200 3 300mm seed trays with potting media. Smaller seeds are broadcast into the trays but larger seeds are spaced using a template to form 40 holes in a tray. The seed trays are watered daily, being soaked in large trays, to enable water to penetrate from the bottom rather than from the top. The date of first germination is recorded. If germination occurs, young plantlets are pricked-out after reaching 50–100mm in height.
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Fig. 6 RBGE’s Nursery Supervisor, Peter Brownless, training OBG staff in vegetative propagation techniques. Photo: Annette Patzelt.
Initial attempts at rooting cuttings by the OBG team were variable, so RBGE staff were asked to visit Muscat in December 2006 in order to develop protocols for vegetative propagation (Fig. 6). Peat moss and vermiculite (ratio 1:1) was decided upon for the rooting media, the design of the propagation tunnels was modified to allow better access and OBG staff were taught the importance of looking after the cuttings and maintaining hygiene within a propagation environment. It was believed to be important to start with less sophisticated methods of plant propagation, as the rented facilities were basic and there was not the depth of skill and experience within the OBG team. With the development of the staff and the move to new nursery facilities on the OBG site in June/July 2008, however, the propagation techniques and establishment and growth requirements will be expanded and, through experimentation, precise production protocols will be developed for every species. Overall, propagation to date has been successful, with much learned that will be of use when the nursery expands into phase two. So far, 327 species from 68 different families have been propagated or collected, representing 29% of the country’s flora (Table 1). Eighty-five of the species are on the National Red List (Patzelt, 2008). Appendix I summarizes the propagation success over the first two years. Initially, success rates were not recorded accurately and were counted as ‘Very Poor’ (success < 5%), ‘Poor’ (5–10%), ‘Medium’ (10–60%), ‘Good’ (60–80%) and ‘Very Good’ (> 80%).
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Month
Total plants in nursery
No. of species
No. of families
No. of species on the Red List
February 2006
0
0
0
0
April 2006
2,021
102
40
23
June 2006
6,398
131
44
31
August 2006
9,267
165
54
42
October 2006
10,626
167
59
45
December 2006
16,563
244
59
49
February 2007
16,695
269
62
49
April 2007
26,038
288
65
66
June 2007
34,797
300
65
76
August 2007
35,866
303
65
76
October 2007
37,858
314
66
76
December 2007
38,296
317
67
77
February 2008
49,352
321
67
80
April 2008
50,658
321
67
80
June 2008
51,851
327
68
85
NB: The total flora of Oman contains c. 1,200 species within 124 plant families. 261 species are currently on the National Red List. Table 1. Plant production and collection figures for the OBG nursery. G row i n g - O n P l a n ts
After propagation, seedlings and rooted cuttings are potted-up and retained in a polythene tunnel until clear signs of root formation are obvious. They are then transferred into the larger polythene tunnel or shade structure. Whole plants, bulbs and tubers collected from the wild are treated in the same way. RBGE staff worked with the OBG team in December 2006 to develop a standard OBG potting medium, consisting of peat moss, vermiculite and sweet soil (ratio 3:1:1) and slow release fertilizer. All plants were then placed in a cooled, shaded greenhouse, under a shade net providing 70% shade, and were watered daily. For succulents, plants of sand dunes and bulbs, however, different soil mixtures were developed by the OBG team: for succulents, coarse gravel and vermiculite (ratio of 1:1), for sand plants, sand plus the standard OBG mix (ratio 1:1) and for bulbs, the OBG standard mix plus coarse vermiculite and fine sweet soil is used (ratio of 1:2:1). The propagation, growing and maintenance of so many different Omani plants from a range of restricted and extreme environments (and which have never been previously cultivated) has been a challenge and a huge learning curve for the OBG team but this has been helped greatly through the horticultural support, consultancy and the teaching of
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Fig. 7 RBGE’s Leigh Morris reviewing the growth of a batch of wild collected plants with OBG staff in the nursery at A Seeb. Photo: Annette Patzelt.
good maintenance and collection management techniques provided by Mark Richardson (BGCI), Dr Mike Maunder (Fairchild Tropical Botanic Garden) and the horticulturists from RBGE (Fig. 7). One of the key areas has been irrigation of plants from highly diverse habitats. The arid climate in Muscat, especially during the hot summer months, has increased the irrigation challenge and a couple of electrical power cuts have resulted in water supply failures that have damaged part of the collection. P ro d u c t i o n L i st
A key part of the plant collection and propagation for OBG has been the development of a detailed Nursery Production List, which lists the species and the size(s) and number required, for all the habitat areas. During the early collection and propagation of plants this list was basic but as more detailed habitat plans have been developed, the nursery team has been able to draw up a more accurate schedule with respect to numbers and types required. As with any nursery production list, however, it is still constantly evolving and will not be finalized until the OBG detailed design phase is complete. The production list also serves as a reference for the landscape design team, as to which species are characteristic for which habitat. The use of the list as a tool during the first years of the planning and development allows for coordination between collection, cultivation and detailed design planning.
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Ac k n ow l e d g e m e n ts
The Oman Botanic Garden is funded by the Diwan of Royal Court of the Government of the Sultanate of Oman. The authors are particularly grateful to Saif Al Hatmi, Shadia Al Rijeibi, Dareen Mehdi, Ghudaina Al Issai, Khalid Al Farsi and Zawan Al Qasabi (all Oman Botanic Garden) for their help and support. This work could not have been this successful without the hard work of the horticultural assistants, bravely surviving the summer nursery conditions of the garden’s nursery rented facilities and their care of the plants. Special thanks are due to Mark Richardson (BGCI), Dr David Rae, Tony Miller, Sabina Knees and Peter Brownless (RBGE) and Dr Mike Maunder (Fairchild). R ef er ences
BGCI (2001). An international review of the ex-situ collections of the botanic gardens of the world. Botanic Gardens Conservation News, 3(6), 22–33. MILLER, A.G. & COPE, T.A. (1996). Flora of the Arabian Peninsula and Socotra, Vol. 1. Edinburgh University Press, Edinburgh. MITTERMEIER, R.A., GIL, P.R., HOFFMAN, M., PILGRIM, J., BROOKS, T., GOETTSCH MITTERMEIER, C., LAMOREUX, J. & DA FONSECA, G.A.B. (2005). Hotspots Revisited: Earth’s Biologically Richest and Most Threatened Terrestrial Ecoregions. Conservation International. PATZELT, A. (2008). Oman Plant Red Data Book. Office for Conservation of the Environment, Diwan of Royal Court, Muscat, Sultanate of Oman.
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Seeds Whole plants Seeds Whole plants Seeds Cuttings Seeds Whole plants Seeds Cuttings Whole plants Seeds Seeds Seeds Seeds Seeds
Barleria aucheriana Nees
Barleria candida Nees
Barleria hochstetteri Nees
Barleria samhanensis Knees, A.G. Mill. & A. Patzelt
Barleria samhanensis Knees, A.G. Mill. & A. Patzelt
Blepharis ciliaris (L.) B.L. Burtt
Blepharis dhofarensis A.G. Mill.
Blepharis linariaefolia Pers.
Ecbolium viride (Forssk.) Alston
Lepidagathis calycina Hochst. ex Nees
Neuracanthus spinosus Deflers
Ruellia discifolia Oliv.
Ruellia grandiflora (Forssk.) Blatter
Ruellia patula Jacq.
Ruellia sp.
Propagation method
Barleria aucheriana Nees
Species
Acanthaceae
Family
n.r.
9
5
n.r.
n.r.
n.a.
n.a.
n.r.
n.a.
3
n.a.
6
n.a.
n.r.
n.a.
4
First germination (days)
APPENDIX I. Propagation succes at OBG over the first two years. In First germination (days) column n.a. signifies ‘not applicable’ and n.r. signifies ‘not recorded’.
medium
10
26
very poor
very poor
75
very good
very poor
33
21
64
63
50–100
very poor
0–10
9
Success rates (%)
Regional Endemic
Endemic
Endemic
Endemic
Endemic
Endemic
Status
NT
VU B1b(ii,iii)
CR B1B2ab(iii)
CR B1B2ab(iii)
EN A1 abc
EN A1 abc
Oman Plant Red Data Book assessment
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Whole plants Whole plants Whole plants
Adiantum capillus-veneris L.
Cheilanthes vellea (Aiton) F. Muell.
Cheilanthes pteridioides (Reichard) C. Chr.
Seeds
Psilotrichum virgatum C.C. Townsend
Bulbs Bulbs
Crinum sp.
Pancratium maximum Forssk.
Seeds
Aerva javanica (Burm.f.) Schult.
Amaryllidaceae
Seeds
Aerva artemisioides Vierh. & Schwartz subsp. batharitica A.G. Mill.
Whole plants
Sansevieria ehrenbergii Schweinf. ex Baker
Amaranthaceae
Division
Sansevieria ehrenbergii Schweinf. ex Baker
Spores
Adiantum incisum Forssk.
Agavaceae
Whole plants
Adiantum incisum Forssk.
Seeds
Ruttya fruticosa Lindau
Adiantaceae
Cuttings
Propagation method
Ruttya fruticosa Lindau
Species
Family
n.a.
n.a.
n.r.
n.r.
6
n.a.
n.a.
n.a.
n.a.
n.a.
0
n.a.
10
n.a.
First germination (days)
100
80
poor
very poor
very good
86–100
100
11
1
14–82
0
95
60
medium
Success rates (%)
Regional Endemic
Rare and threatened
Endemic
Status
LC
VU D1
VU D1
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Species
Chlorophytum laxum R. Br.
n.a. n.a.
Whole plants Whole plants Whole plants Whole plants Seeds Whole plants Whole plants Whole plants
Caralluma arabica N.E. Br.
Caralluma cf. flava
Caralluma flava N.E. Br.
Caralluma flava 3 arabica ined.
Caralluma quadrangula (Forssk.) N.E. Br.
Caralluma quadrangula (Forssk.) N.E. Br.
Caralluma penicillata (Deflers) N.E. Br.
Caralluma adenensis (Deflers) A. Berger
n.a.
n.a.
n.a.
2
n.a.
n.a.
3
Seeds
Calotropis procera (Aiton) Dryand
n.a.
Whole plants
Adenium obesum (Forssk.) Roem. & Schult.
n.r.
n.a.
n.a.
First germination (days)
Seeds
Rhus somalensis Engl.
Apocynaceae
Cuttings
Rhus aucheri Boiss.
Bulbs
Propagation method
Anacardiaceae
Anthericaceae
Family
48–100
53
74–100
76
94–100
60–100
100
38–100
10
58–77
poor
good
good
Success rates (%)
Regional Endemic
Rare and threatened
Regional Endemic
Regional Endemic
Regional Endemic
Regional Endemic
Endemic
Status
CR D1
CR C2a(i)
NT
NT
VU C2a(i)
VU A4a,d
NT
Oman Plant Red Data Book assessment
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n.a.
Division Whole plants Whole plants Seeds Cuttings Seeds Seeds Seeds Seeds Seeds Seeds Whole plants Whole plants Whole plants Division
Echidnopsis scutellata (Deflers) A. Berger subsp. dhofarensis Bruyns
Echidnopsis scutellata (Deflers) A. Berger subsp. dhofarensis Bruyns
Glossonema varians (Stocks) Benth. ex Hook.f.
Leptadenia pyrotechnica (Forssk.) Decne.
Nerium oleander L.
Nerium oleander L.
Periploca aphylla Decne. in Jacquem.
Periploca visciformis (Vatke) K. Schum.
Periploca cf. visciformis
Periploca sp.
Rhazya stricta Decne.
Rhytidocaulon fulleri Lavranos & Mortimer
Rhytidocaulon sp.
Sarcostemma viminale (L.) R. Br.
Orbea wissmannii (O. Schwartz) Bruyns subsp. parviloba Bruyns
n.a.
n.a.
n.a.
n.a.
n.r.
n.r.
5
13
n.r.
11
n.a.
n.r.
n.a.
n.a.
16
Seeds
Cibirhiza dhofarense Bruyns
n.a.
First germination (days)
Whole plants
Propagation method
Caralluma sp.
Species
Family
92
96
very good
very good
very good
good
99
33
poor
60
poor
medium
poor
41–100
71–99
8
86
Success rates (%)
Regional Endemic
Near Endemic
Endemic
Endemic
Near Endemic
Status
EN B1b(ii,iii)
EN B1b(i,iii)
VU B2b(ii,iii)
VU B2b(ii,iii)
VU B1b(iii,v)
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Whole plants
Orbea luntii (N.E. Br.) Bruyns
Asparagus sp.
Division Whole plants Seeds Whole plants
Aloe whitcombei Lavranos
Aloe whitcombei Lavranos
Aloe dhufarensis Lavranos
Aloe dhufarensis Lavranos
Seeds Whole plants Seeds Seeds Seeds
Blepharispermum hirtum Oliver
Cichorium intybus L.
Dicoma schimperi (DC.) Baill. ex O. Hoffm.
Echinops spinosissimus Freyn
Euryops arabicus Steud. ex Jaub. & Spach
Whole plants
Aloe praetermissa McCoy & Lavranos
Asteraceae
Division
Aloe praetermissa McCoy & Lavranos
Whole plants
Asphodelaceae
Division
Orbea luntii (N.E. Br.) Bruyns
Asparagaceae
Whole plants
Propagation method
Orbea wissmannii (O. Schwartz) Bruyns subsp. parviloba Bruyns
Species
Family
n.r.
n.r.
n.r.
n.a.
4
n.a.
10
n.a.
n.a.
n.a.
n.a.
n.a.
n.a.
n.a.
n.a.
First germination (days)
84
good
n.r.
poor
very good
73
50
100
90
96–100
100
very good
100
75
88
Success rates (%)
Near Endemic
Near Endemic
Near Endemic
Endemic
Endemic
Endemic
Endemic
Near Endemic
Near Endemic
Regional Endemic
Status
VU A4abc
VU B1b(ii,iii)
VU B1b(ii,iii)
CR B2a;D1
CR B2a;D1
LC
LC
EN B1b(ii,iii)
EN B1b(ii,iii)
EN B1b(ii,iii)
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Whole plants Cuttings Whole plants Seeds Seeds Whole plants Seeds Seeds Whole plants Whole plants Whole plants Seeds Seeds Whole plants Seeds Seeds Seeds Seeds
Euryops arabicus Steud. ex Jaub. & Spach
Gnaphalium makranicum Rech.f. & Esfand
Iphiona aucheri (Boiss.) Anderb.
Iphiona horrida Boiss.
Iphiona scabra DC.
Iphiona senecionoides (Baker) Anderb.
Kleinia odora (Forssk.) DC.
Kleinia odora (Forssk.) DC.
Kleinia saginata P. Halliday
Kleinia sp.
Launaea bornmuelleri (Hausskn. ex Bornm.) Bornm.
Launaea castanosperma F.G. Davies
Osteospermum vaillantii (Desne.) Norlindh
Parthenium hysterophorus L.
Pluchea arabica (Boiss.) Qaiser & Lack
Pulicaria cylindrica (Baker) O. Schwartz
Pulicaria glutinosa (Boiss.) Jaub. & Spach subsp. glutinosa
Propagation method
Euryops arabicus Steud. ex Jaub. & Spach
Species
Family
n.r.
28
n.r.
n.r.
n.a.
n.r.
n.r.
n.a.
n.a.
n.a.
3
n.r.
n.a.
n.r.
n.r.
n.a.
n.a.
n.a.
First germination (days)
n.r.
poor
n.r.
very poor
very poor
n.r.
n.r.
100
63–80
83–90
6
n.r.
very poor
poor
n.r.
very poor
very poor
100
Success rates (%)
Regional Endemic
Regional Endemic
Near Endemic
Near Endemic
Near Endemic
Status
LC
NT
NT
NT
NT
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Seeds Seeds
Vernonia spathulata (Forssk.) Sch. Bip.
Volutaria sinaica (DC.) Wagenitz
Avicennia marina (Forssk.) Vierh.
Adansonia digitata L.
Seeds Cuttings Whole plants Whole plants Seeds
Cordia nevillii Alston
Cordia sp.
Echiochilon persicum (Burm.f.) I.M. Johnst.
Echiochilon callianthum Lönn
Echiochilon callianthum Lönn
Seeds
Boraginaceae
Suckers
Tecomella undulata (Roxb.) Seem.
Bombacaceae
Cuttings
Tecomella undulata (Roxb.) Seem.
Seeds
Bignoniaceae
Seeds
Vernonia arabica F.G. Davies
Avicenniaceae
Whole plants
Pulicaria sp.
n.r.
n.a.
n.a.
n.a.
n.r.
8
n.a.
n.a.
n.r.
4
11
n.r.
n.a.
n.a.
Whole plants
First germination (days)
Propagation method
Pulicaria glutinosa (Boiss.) Jaub. & Spach subsp. glutinosa
Species
Family
very poor
very poor
very poor
very poor
very poor
7
60
very poor
good
12
4
n.r.
very poor
very poor
Success rates (%)
Regional Endemic
Regional Endemic
Rare and threatened
Rare and threatened
Regional Endemic
Status
LC
LC
VU D1
VU A1abcd
LC
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Whole plants Seeds Whole plants Seeds Whole plants Seeds
Heliotropium calcareum Stocks
Heliotropium kotschyi Gürke
Heliotropium kotschyi Gürke
Lappula siniaca (A. DC.) Asch. ex Schweinf.
Trichodesma africanum (L.) Lehm.
Trichodesma hildebrandtii Gürke
Whole plants Seeds
Farsetia linearis Decne. ex Boiss.
Physorrhynchus chamaerapistrum (Boiss.) Boiss.
Cuttings Seeds Cuttings
Boswellia sacra Flück.
Boswellia sacra Flück.
Commiphora cf. kataf
Seeds
Farsetia linearis Decne. ex Boiss.
Burseraceae
Seeds
Farsetia aegyptiaca Turra
Seeds
Heliotropium calcareum Stocks
Brassicaceae
Whole plants
Propagation method
Echiochilon sp.
Species
Family
n.a.
10
n.a.
n.r.
n.a.
n.r.
n.r.
n.r.
n.a.
n.r.
n.a.
8
n.a.
n.r.
n.a.
First germination (days)
poor
1
poor
good
0–20
good
good
good
poor
good
8–14
7
poor
poor
very poor
Success rates (%)
Rare and threatened
Rare and threatened
Regional Endemic
Regional Endemic
Status
VU B1b(i,iii,v)
VU B1b(i,iii,v)
LC
LC
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Whole plants Whole plants Cuttings Seeds Cuttings Cuttings
Commiphora gileadensis (L.) C. Chr.
Commiphora kua (R. Br. ex Royle) Vollensen
Commiphora kua (R. Br. ex Royle) Vollensen
Commiphora kua (R. Br. ex Royle) Vollensen
Commiphora wightii (Arn.) Bhandari
Commiphora sp.
Cuttings Seeds Seeds Seeds
Capparis spinosa L.
Dhofaria macleishii A.G. Mill.
Dipterygium glaucum Decne.
Maerua crassifolia Forssk.
Seeds Whole plants Seeds
Cometes abyssinica (R. Br.) Wall.
Gymnocarpos decandrus Forssk.
Gymnocarpos decandrus Forssk.
Seeds
Capparis cartilaginea Decne.
Caryophyllaceae
Seeds
Cadaba heterotricha Stocks ex Hook.
Seeds
Commiphora gileadensis (L.) C. Chr.
Capparaceae
Seeds
Propagation method
Commiphora foliacea Sprague
Species
Family
n.r.
n.a.
5
5
n.r.
25
n.a.
n.r.
n.r.
n.a.
n.a.
4
n.a.
n.a.
n.a.
6
16
First germination (days)
very poor
very poor
10
7
very poor
89
very poor
good
very poor
100
poor
20
very good
100
100
5
13
Success rates (%)
Near Endemic
Status
VU B2b(i,iii)
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Seeds
Xerotia arabica Oliver
Whole plants Seeds Whole plants Seeds Whole plants
Suaeda aegyptiaca (Hasselq.) Zohary
Suaeda moschata A.J. Scott
Suaeda cf. vermiculata
Helianthemum citrinum S.A. Ghazanfar
Helianthemum lippii (L.) Dum.-Cours.
Cistaceae
Cleome noeana Boiss. subsp. noeana
Whole plants
Halothamnus bottea Jaub. & Spach
Seeds
Whole plants
Cornulaca monacantha Delile
Cleomaceae
Whole plants
Anabasis setifera Moq.
Seeds
Maytenus sp. nov.
Chenopodiaceae
Whole plants
Maytenus dhofarensis (Roxb. ex Willd.) Voight
Seeds
Polycarpaea jazirensis R.A. Clement
Celastraceae
Whole plants
Propagation method
Herniaria maskatensis Bornm.
Species
Family
n.r.
n.a.
44
n.a.
n.r.
n.a.
n.a.
n.a.
n.a.
13
n.a.
n.r.
59
n.a.
First germination (days)
good
very poor
26
100
poor
poor
poor
very poor
very poor
15
100
very poor
poor
very poor
Success rates (%)
Near Endemic
Near Endemic
Regional Endemic
Endemic
Regional Endemic
Endemic
Status
LC
NT
LC
LC
VU B1b(ii,iii)
CR D1
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Seeds Seeds Whole plants Seeds Whole plants Seeds Seeds Whole plants Seeds Seeds Seeds
Convolvulus hystrix subsp. dhofarica R.R. Mill ined.
Convolvulus pilosellifolius Desr.
Convolvulus pilosellifolius Desr.
Convolvulus virgatus Boiss.
Convolvulus virgatus Boiss.
Convolvulus austroaegyptiacus Abdallah & Sa’ad
Convolvulus sp.
Convolvulus sp.
Hildebrandtia africana Vatke subsp. arabica Sebsebe
Merremia somalensis (Vatke) Hall.f.
Seddera latifolia Hochst. & Steud.
Whole plants
Commelina sp.
Convolvulaceae
Whole plants
Commelina albescens Hassk.
Seeds
Anogeissus dhofarica A.J. Scott
Commelinaceae
Cuttings
Propagation method
Anogeissus dhofarica A.J. Scott
Species
Combretaceae
Family
n.r.
n.r.
6
n.a.
n.r.
n.r.
n.a.
n.r.
n.a.
n.r.
n.r.
n.a.
n.a.
4
n.a.
First germination (days)
poor
3
3
very poor
very poor
poor
100
poor
6
poor
very poor
good
100
good
poor
Success rates (%)
Regional Endemic
Regional Endemic
Near Endemic
Near Endemic
Status
LC
LC
NT
VU A4abcd
VU A4abcd
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Kalanchoe glaucescens Britten
Whole plants Seeds Whole plants Whole plants Whole plants
Cyperus conglomeratus Rottb.
Cyperus sp.
Fimbristylis cymosa R. Br. subsp. spathacea (Roth) Koyama
Schoenoplectus sp.
Schoenus nigricans L.
Cuttings
Juniperus excelsa M. Bieb. subsp. polycarpos (K.Koch) Takhtajan
Cyperaceae
Seeds
Juniperus excelsa M. Bieb. subsp. polycarpos (K.Koch) Takhtajan
Whole plants
Corallocarpus glomeruliflorus (Deflers) Cogn.
Cupressaceae
Seeds
Citrullus colocynthis (L.) Schrad.
Whole plants
Cucurbitaceae
Seeds
Stictocardia punctata (Baker) R.R. Mill. ined.
Crassulaceae
Whole plants
Propagation method
Seddera latifolia Hochst. & Steud.
Species
Family
n.a.
n.a.
n.a.
6
n.a.
n.a.
22
n.a.
n.r.
n.a.
7
n.a.
First germination (days)
100
85
100
good
0–7
very poor
1
12
good
100
0.5
0
Success rates (%)
Rare and threatened
Rare and threatened
Rare and threatened
Rare and threatened
Rare and threatened
Status
VU A4abc
VU A4ac; B1b(i,iii,iv)
VU A4ac; B1b(i,iii,iv)
VU D1
CR D1
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Whole plants Whole plants Seeds Seeds Whole plants Whole plants Whole plants Seeds Whole plants Whole plants Whole plants Whole plants
Andrachne aspera Spreng.
Andrachne telephioides L.
Chrozophora oblongifolia (Delile) A. Juss. ex Spreng.
Euphorbia balsamifera Aiton subsp. adenensis (Deflers) Bally
Euphorbia balsamifera Aiton subsp. adenensis (Deflers) Bally
Euphorbia cactus Ehrenb. ex Boiss.
Euphorbia hadramautica Baker
Euphorbia larica Boiss.
Euphorbia larica Boiss.
Euphorbia masirahensis A.G. Ghazanfar
Euphorbia orbiculifolia S. Carter
Euphorbia smithii Deflers
Whole plants
Ephedra pachyclada Boiss. subsp. pachyclada
Euphorbiaceae
Seeds
Whole plants
Propagation method
Ephedra foliata Boiss. ex C.A. Mey.
Dracaena serrulata Baker
Species
Ephedraceae
Dracaenaceae
Family
n.a.
n.a.
n.a.
n.a.
7
n.a.
n.a.
n.a.
6
n.r.
n.a.
n.a.
n.a.
n.r.
n.a.
First germination (days)
100
89–100
very poor
73–100
1
100
100
100
4
poor
0
0
55–100
good
92
Success rates (%)
Near Endemic
Near Endemic
Endemic
Regional Endemic
Status
NT
VU D2
DD
EN 4abcd
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Seeds Whole plants Cuttings Whole plants Cuttings Seeds Whole plants Seeds
Euphorbia aff. uzmuk sensu Miller and Cope
Euphorbia aff. uzmuk sensu Miller and Cope
Flueggea virosa (Roxb. ex Willd.) Voigt
Flueggea virosa (Roxb. ex Willd.) Voigt
Jatropha dhofarica Radcl.-Sm.
Jatropha dhofarica Radcl.-Sm.
Jatropha dhofarica Radcl.-Sm.
Ricinus communis L. Muell.-Arg.
Exacum aff. affine Balf.f. ex Regel
Whole plants Bulbs Seeds Bulbs
Dipcadi biflorum S.A. Ghazanfar
Dipcadi erythraeum Webb & Berthel
Gladiolus candidus (Rendle) Goldblatt
Gladiolus candidus (Rendle) Goldblatt
Iridaceae
Seeds
Hyacinthaceae
Whole plants
Euphorbia aff. schimperi sensu Miller and Cope
Gentianaceae
Seeds
Propagation method
Euphorbia aff. schimperi sensu Miller and Cope
Species
Family
n.a.
10
n.a.
n.a.
n.r.
n.r.
n.a.
15
n.a.
n.a.
n.a.
n.a.
6
n.a.
n.r.
First germination (days)
12
25
very poor
40
poor
good
96–100
3
14–36
100
poor
100
55
65
poor
Success rates (%)
Regional Endemic
Regional Endemic
Near Endemic
Near Endemic
Near Endemic
Endemic
Endemic
Endemic
Endemic
Status
LC
EN B1ab(ii,iii)+2ab(iii,iv)
LC
LC
LC
NT
NT
LC
LC
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Seeds Seeds Seeds Seeds Seeds Whole plants Seeds Whole plants Seeds Whole plants Whole plants Seeds Whole plants
Lavandula dhofarensis A.G. Mill. subsp. dhofarensis A.G. Mill.
Lavandula hasikensis A.G. Mill.
Lavandula subnuda Benth.
Leucas inflata Benth.
Mentha longiflora Opiz ex Steud.
Ocimum forskolei Benth.
Ocimum forskolei Benth.
Orthosiphon pallidus Royle ex Benth.
Plectranthus barbatus Andrews
Plectranthus cylindraceus Hochst. ex Benth.
Salvia aegyptiaca L.
Salvia aegyptiaca L.
Seeds
Bulbs
Propagation method
Lavandula dhofarensis A.G. Mill. subsp. ayunensis A.G. Mill.
Juncus rigidus Desf.
Gladiolus italicus Mill.
Species
Lamiaceae
Juncaceae
Family
n.a.
n.r.
n.a.
n.a.
45
n.a.
n.r.
n.a.
n.r.
n.r.
n.r.
9
11
n.r.
31
First germination (days)
0
medium
100
80–84
6
poor
good
93
medium
poor
poor
very good
very poor
very good
96
Success rates (%)
Regional Endemic
Near Endemic
Endemic
Rare and threatened
Status
LC
LC
LC
NT
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Seeds Whole plants Seeds Whole plants
Teucrium mascatense Boiss.
Teucrium mascatense Boiss.
Teucrium stocksianum Boiss subsp. stenophyllum R.A. King
Teucrium stocksianum Boiss subsp. stenophyllum R.A. King
Seeds Seeds Seeds Seeds Seeds Seeds Seeds Whole plants Seeds Seeds
Acacia asak (Forssk.) Willd.
Acacia ehrenbergiana Hayne
Acacia hamulosa Benth.
Acacia senegal (L.) Willd.
Acacia tortilis (Forssk.) Hayne
Acacia gerrardii Benth. subsp. gerrardii
Acacia gerrardii Benth. subsp. negevensis Zohary
Argyrolobium crotalarioides Jaub. & Spach
Cadia purpurea (Picc.) Aiton
Ceratonia oreothauma subsp. oreothauma Hillc., G.P. Lewis & Verdc.
Seeds
Salvia sp. aff. hillcoatiae
Leguminosae
Seeds
Propagation method
Salvia macilenta Boiss.
Species
Family
n.r.
5
n.a.
n.r.
n.r.
3
19
3
n.r.
n.r.
n.a.
n.r.
n.a.
n.r.
7
n.r.
First germination (days)
very good
89
0
good
good
7
81
93
good
good
poor
good
100
very poor
1
poor
Success rates (%)
Regional Endemic
Endemic
Endemic
Endemic
Status
VU D2
LC
LC
LC
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Seeds Whole plants Seeds Seeds Seeds Cuttings Whole plants Seeds Seeds Seeds Seeds Seeds Seeds Whole plants Seeds Seeds Whole plants Seeds Whole plants
Crotalaria aegyptiaca Benth.
Crotalaria leptocarpa Balf.f.
Crotalaria persica (Burm.f.) Merr.
Crotalaria saltiana T. Anders
Dalbergia sissoo Roxb.
Dalbergia sissoo Roxb.
Delonix elata (L.) Gamble
Indigofera articulata Gouan
Prosopis cineraria (L.) Druce
Pseudolotus makranicum (Rech.f. & Esfand.) Rech.f.
Taverniera brevipetiolata Thulin
Taverniera cuneifolia (Roth) Arn.
Taverniera cuneifolia (Roth) Arn.
Taverniera lappacea (Forssk.) DC.
Tephrosia apollinea (Delile) Link
Tephrosia apollinea (Delile) Link
Tephrosia nubica (Boiss.) Baker
Tephrosia quartiniana Cufod. ex Greuter & Burdet
Propagation method
Crotalaria aegyptiaca Benth.
Species
Family
n.a.
4
n.a.
n.r.
n.r.
n.a.
n.r.
n.r.
n.r.
3
n.r.
3
n.a.
n.a.
4
5
n.r.
n.a.
n.r.
First germination (days)
very poor
very good
20–50
very good
poor
100
very good
medium
very poor
65
n.r.
60
90
80
96
10
good
10
good
Success rates (%)
Endemic
Status
EN B2ab(ii,iii)
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Seeds Whole plants Seeds Seeds Seeds
Hibiscus micranthus L.
Hibiscus micranthus L.
Hibiscus sidiformis Baill. in Bull.
Pavonia arabica Hochst. & Steud. ex Boiss.
Senra incana Cav.
Seeds Cuttings Whole plants Cuttings
Cocculus balfourii Schweinf. ex Balf.f.
Cocculus pendulus (J. Forst.) Diels
Dorstenia foetida (Forssk.) Schweinf.
Ficus cordata Ridl. subsp. salicifolia (Vahl) C.C. Berg
Moraceae
Seeds
Gossypium stocksii Masters
Menispermaceae
Whole plants
Seeds
Abutilon pannosum (G. Forst.) Schltr.
Acridocarpus orientalis A. Juss.
Whole plants
Propagation method
Malvaceae
Species
Woodfordia uniflora (A. Rich.) Koehne
Malpighiaceae
Lythraceae
Family
n.a.
n.a.
n.a.
n.r.
3
n.r.
6
n.a.
n.r.
n.r.
n.a.
21
n.a.
First germination (days)
58
84–100
poor
poor
10
medium
2
8
very good
good
poor
4
100
Success rates (%)
Regional Endemic
Status
NT
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Whole plants Cuttings
Ficus vasta Forssk.
Ficus johannis Boiss.
Seeds Whole plants Seeds Seeds Whole plants Cuttings Seeds
Boerhavia elegans Choisy subsp. stenophylla (Boiss.) A.G. Mill.
Boerhavia elegans Choisy subsp. stenophylla (Boiss.) A.G. Mill.
Commicarpus helenae (Roemer & J.A. Schultes) Meikle
Commicarpus mistus Thulin
Commicarpus mistus Thulin
Olea europaea L. subsp. cuspidata (Wall. ex G. Don) Ciffieri
Olea europaea L. subsp. cuspidata (Wall. ex G. Don) Ciffieri
Oleaceae
Seeds
Nyctaginaceae
Moringa peregrina (Forssk.) Fiori
Cuttings
Ficus vasta Forssk.
Seeds
Ficus sycomorus L.
Moringaceae
Seeds
Propagation method
Ficus cordata Ridl. subsp. salicifolia (Vahl) C.C. Berg
Species
Family
66
n.a.
n.a.
n.r.
18
n.a.
n.r.
n.r.
n.a.
n.a.
n.a.
17
9
First germination (days)
11
18
75
good
50
0
very good
poor
good
100
22
very good
very good
Success rates (%)
Status
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Whole plants Bulbs Bulbs Bulbs
Eulophia guineensis Lindl.
Habenaria malacophylla Rchb.f.
Nervilia crociformis (Zoll. & Mor.) Seidenf.
Nervilia bicarinata (Blume) Schltr.
Seeds Whole plants Seeds Whole plants Whole plants Seeds Seeds Cuttings
Dyerophytum indicum (Gibs. ex Wight) Kuntze
Dyerophytum indicum (Gibs. ex Wight) Kuntze
Limonium axillare (Forssk.) Kuntze
Limonium milleri S.A. Ghazanfar & J.R. Edmondson
Limonium sarcophyllum S.A. Ghazanfar & J.R. Edmondson
Limonium sarcophyllum S.A. Ghazanfar & J.R. Edmondson
Limonium sp.
Plumbago zeylanica L.
Bulbs
Eulophia petersii (Rchb.f.) Rchb.f.
Plumbaginaceae
Seeds
Propagation method
Epipactis veratrifolia Boiss. & Hohen. ex Boiss.
Species
Orchidaceae
Family
n.a.
n.r.
n.r.
n.a.
n.r.
n.r.
n.a.
7
n.a.
n.a.
n.a.
n.a.
0
First germination (days)
poor
very poor
very good
0
poor
medium
poor
4
100
100
n.r.
100
0
Success rates (%)
Endemic
Endemic
Endemic
Rare and threatened
Rare and threatened
Rare and threatened
Rare and threatened
Rare and threatened
Rare and threatened
Status
VU A4abc
VU A4abc
LC
NT
VU A4abc
NT
NT
NT
VU A4abc
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Seeds Seeds Whole plants Seeds Seeds Whole plants Whole plants Seeds Whole plants Whole plants Seeds Seeds Whole plants Whole plants Seeds Whole plants Seeds Seeds Whole plants
Aristida abnormis Chiov.
Cenchrus ciliaris L.
Chrysopogon aucheri (Boiss.) Stapf
Chrysopogon plumulosus Hochst.
Cymbopogon commutatus (Steud.) Stapf
Cymbopogon commutatus (Steud.) Stapf
Cymbopogon pospischilii (K. Schum.) C.E. Hubb.
Cymbopogon schoenanthus (L.) Spreng.
Cymbopogon schoenanthus (L.) Spreng.
Dichanthium foveolatum (Delile) Roberty
Digitaria nodosa Parl.
Enneapogon persicus Boiss.
Hyparrhenia hirta (L.) Stapf
Indet.
Lasiurus scindicus Henrard
Panicum turgidum Forssk.
Pennisetum setaceum (Forssk.) Chiov.
Pennisetum sp.
Saccharum griffithii Munro ex Boiss.
Propagation method
Species
Poaceae
Family
n.a.
n.r.
n.r.
n.a.
n.r.
n.r.
n.a.
n.r.
n.r.
n.a.
n.a.
n.r.
n.a.
n.a.
n.r.
n.r.
n.a.
n.r.
n.r.
First germination (days)
74
medium
poor
poor
good
good
poor
poor
good
0–8
poor
good
11
31
good
very poor
18
good
good
Success rates (%)
Status
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Seeds Seeds Whole plants Seeds
Sporobolus sp.
Stipagrostis ciliata (Desf.) De Winter
Stipagrostis ciliata (Desf.) De Winter
Tricholaena teneriffae (L.f.) Link
Seeds Whole plants Seeds
Polygala mascatense Boiss.
Polygala mascatense Boiss.
Polygala tinctoria Vahl
Cuttings Seeds Cuttings Seeds
Calligonum comosum L’Hér.
Calligonum comosum L’Hér.
Pteropyrum scoparium Jaub. & Spach
Pteropyrum scoparium Jaub. & Spach
Whole plants
Polygala irregularis Boiss.
Polygonaceae
Whole plants
Polygala dispar S.A. Ghazanfar
Seeds
Saccharum ravennae (L.) Murray
Polygalaceae
Seeds
Propagation method
Saccharum griffithii Munro ex Boiss.
Species
Family
4
n.a.
4
n.a.
12
n.a.
n.r.
n.a.
n.a.
n.r.
n.a.
3
4
6
5
First germination (days)
40
0
8
very poor
9
23
poor
0
0
very good
100
poor
good
very good
good
Success rates (%)
Regional Endemic
Regional Endemic
Regional Endemic
Endemic
Endemic
Endemic
Status
LC
LC
LC
LC
LC
DD
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Whole plants Seeds Seeds Seeds
Ochradenus aucheri Boiss. subsp. aucheri A.G. Mill.
Ochradenus harsusiticus A.G. Mill.
Ochradenus sp. nov.
Reseda sphenocleoides Deflers
Seeds Seeds Seeds
Sageretia thea (Osbeck) M.C. Johnst.
Ziziphus hajarensis D.D. Duling, S.A. Ghazanfar & H.D. Prendergast
Ziziphus leucodermis (Baker) O. Schwartz
Seeds
Ochradenus aucheri Boiss. subsp. aucheri A.G. Mill.
Rhamnaceae
Seeds
Whole plants
Seeds
Whole plants
Propagation method
Ochradenus arabicus Chaudhary, Hillc. & A.G. Mill.
Pteris vittata L.
Dionysia mira Wendelbo
Portulaca dhofarica M.G. Gilbert
Species
Resedaceae
Pteridaceae
Primulaceae
Portulacaceae
Family
n.r.
n.r.
n.r.
n.r.
9–20
41
n.a.
n.r.
n.r.
n.a.
2
n.a.
First germination (days)
good
good
very poor
5
1–4
poor
poor
poor
poor
67
98
66
Success rates (%)
Regional Endemic
Endemic
Regional Endemic
? Endemic
Endemic
Regional Endemic
Regional Endemic
Regional Endemic
Endemic
Near Endemic
Status
LC
NT
LC
EN B1b(ii,iii)
LC
LC
LC
EN B1ab(ii,iii)+2ab(iii)
LC
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Whole plants Seeds Whole plants Seeds Seeds Whole plants
Kohautia retrorsa (Boiss.) Bremek.
Pseudogaillonia hymenostephana (Jaub. & Spach) Lincz.
Pseudogaillonia hymenostephana (Jaub. & Spach) Lincz.
Coptosperma graveolens (S. Moore) Degreef subsp. arabicum (Cufod.) Degreef
Haplophyllum tuberculatum (Forssk.) A. Juss.
Haplophyllum tuberculatum (Forssk.) A. Juss.
Rutaceae
Whole plants Cuttings
Dodonaea viscosa (L.) Jacq.
Seeds
Allophylus rubifolius (Hochst. ex A. Rich.) Engl.
Azima tetracantha Lam.
Sapindaceae
Whole plants
Gaillonia aucheri (Guill.) Jaub. & Spach
Salvadoraceae
Seeds
Gaillonia aucheri (Guill.) Jaub. & Spach
Seeds
Propagation method
Cuttings
Ziziphus spina-christi (L.) Desf.
Species
Gaillonia aucheri (Guill.) Jaub. & Spach
Rubiaceae
Family
n.a.
n.a.
12
n.a.
n.r.
33
n.a.
n.r.
n.a.
n.a.
n.r.
n.a.
9
First germination (days)
53
100
55
0
poor
3
0
poor
0
0
poor
0
88
Success rates (%)
Rare and threatened
Status
NT
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Sideroxylon mascatense (A. DC.) Penn.
Seeds Seeds Seeds Seeds Seeds Seeds Seeds
Campylanthus pungens O. Schwartz
Campylanthus sedoides A.G. Mill.
Lindenbergia indica (L.) Vatke
Schweinfurthia imbricata A.G. Mill., M. Short & D.A. Sutton
Schweinfurthia papilionacea (L.) Boiss.
Striga gesnerioides (Willd.) Vatke ex Engl.
Verbascum omanense Hub.-Mor.
Seeds Seeds Seeds
Hyoscyamus insanus Stocks
Lycium shawii Roem. & Schult.
Solanum incanum L.
Seeds
Campylanthus chascaniflorus A.G. Mill.
Solanaceae
Seeds
Campylanthus antonii Thulin
Seeds
Scrophulariaceae
Whole plants
Dodonaea viscosa (L.) Jacq.
Sapotaceae
Seeds
Propagation method
Dodonaea viscosa (L.) Jacq.
Species
Family
n.r.
n.r.
n.r.
n.r.
0
n.r.
n.r.
33
6
0
n.r.
6
12
n.a.
n.r.
First germination (days)
good
medium
good
good
0
good
0
poor
good
0
poor
25
54
44–100
good
Success rates (%)
Endemic
Near Endemic
Endemic
Regional Endemic
Endemic
Near Endemic
Status
DD
NT
EN B1ab(ii,iii)+2ab(iii)
NT
VU B2b(ii,iii)
VU B2ab(ii,iii)
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Seeds Whole plants Seeds Seeds
Melhania muricata Balf.f.
Melhania muricata Balf.f.
Melhania ovata (Cav.) Spreng. subsp. abyssinica (A. Rich.) Schum.
Melhania phillipsiae Bak.f.
Seeds Whole plants Cuttings Seeds Seeds
Corchorus depressus (L.) Stocks
Grewia erythraea Schweinf.
Grewia erythraea Schweinf.
Grewia erythraea Schweinf.
Grewia villosa Willd.
Tiliaceae
Cuttings
Cuttings
Daphne mucronata Royle
Tamarix aphylla (L.) G. Karsten
Thymelaceae
Seeds
Hermannia testacea Vollesen
Tamaricaceae
Seeds
Hermannia paniculata Franch.
Seeds
Withania qaraica A.G. Mill. & J. Biagi
Sterculiaceae
Seeds
Propagation method
Withania somnifera (L.) Dun.
Species
Family
n.r.
9
n.a.
n.a.
n.r.
n.a.
n.a.
n.r.
17
n.a.
6
n.a.
4
6
n.r.
First germination (days)
good
21
poor
0
good
0
very good
good
19
50
38
medium
85
very good
very good
Success rates (%)
Near Endemic
Status
LC
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Seeds Seeds Whole plants
Verbena cf. viburnoides
Vitex agnus-castus L.
Cissus quadrangularis L.
Vitaceae
Whole plants Whole plants Whole plants
Fagonia indica Burm.f.
Fagonia paulayana Wagner & Vierh.
Tetraena qatarense (Hadidi) Beier & Thulin
Seeds
Premna resinosa (Hochst.) Schauer
Zygophyllaceae
Whole plants
Seeds
Propagation method
Phyla nodiflora (L.) Greene
Grewia tenax (Forssk.) Fiori
Species
Verbenaceae
Family
n.a.
n.a.
n.a.
n.a.
4
7
n.r.
n.a.
17
First germination (days)
47
4
4
95
95
0.1
very poor
9
3
Success rates (%)
Regional Endemic
Status
LC
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