Cynanchum gerrardii (Harv.) Liede
subsp. gerrardii

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SRGH

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Synonyms:	Cynanchum sarcostemmatoides K. Schum. Cynanchum tetrapterum (Turcz.) R.A. Dyer Sarcocyphula gerrardii Harv.
Common names:	Milk-rope (English)
Frequency:
Status:	Native
Description:	Leafless perennial twiner or climber. Stems smooth, succulent with milky latex. Flowers in small sessile clusters at the nodes. Corolla green with lobes spreading or reflexed; corona white with outer lobes connected and erect. Fruit a pair of slender, pointed follicles.
Notes:
Derivation of specific name:	gerrardii: named after William Tyler Gerrard (c.1831-1866), British botanical collector in Natal, Madagascar and Australia.
Habitat:	In dry woodland and scrub, often on stony slopes.
Flowering time:	Sep - Apr
Worldwide distribution:	Eritrea, Ethiopia, Somalia, Kenya, Tanzania, Uganda, DRC, Zambia, Zimbabwe, Mozambique, Mpumalanga, KwaZulu-Natal, Eastern Cape South Africa, Comoros and Madagascar. Also in Saudi Arabia and Yemen.on rocky outcrops, in sandy or clayey depressions, often i
Growth form(s):	Climber.
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters:	Display spot characters for this species
Content last updated:	Wednesday 8 June 2016
Literature:	Bandeira, S., Bolnick, D. & Barbosa, F. (2007). Wild Flowers of Southern Mozambique Universidade Eduardo Mondlane, Maputo, Mozambique Page 116. (Includes a picture). Bruyns, P.V. (2014). The Apocynaceae of Namibia Strelitzia 34 SANBI, Pretoria, South Africa Pages 42 - 43. Da Silva, M.C., Izidine, S. & Amude, A.B. (2004). A preliminary checklist of the vascular plants of Mozambique. Southern African Botanical Diversity Network Report No. 30 Sabonet, Pretoria Page 25. Drummond, R.B. (1975). A list of trees, shrubs and woody climbers indigenous or naturalised in Rhodesia. Kirkia 10(1) Page 270. As Cynanchum tetrapterum Goyder, D.J., Gilbert, M.G. & Venter, H.J.T. (2020). Apocynaceae (Part 2) Flora Zambesiaca 7(2) Pages 340 - 341. Goyder, G.J. & Liede-Schumann, S. (2008). Notes on Cynanchum and Pentarrhinum (Apocynaceae: Asclepiadoideae) in Tropical Africa Kew Bulletin 63(3) Pages 465 - 466. Liede, S. (1996). A revision of Cynanchum in Africa Annals of the Missouri Botanical Garden 83 Pages 314 - 316. Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 20. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 24.

Other sources of information about Cynanchum gerrardii subsp. gerrardii:

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Flora of Mozambique: Cynanchum gerrardii subsp. gerrardii
Flora of Zambia: Cynanchum gerrardii subsp. gerrardii
Flora of Zimbabwe: Cynanchum gerrardii subsp. gerrardii

External websites:

African Plants: A Photo Guide (Senckenberg): Cynanchum gerrardii
African Plant Database: Cynanchum gerrardii
BHL (Biodiversity Heritage Library): Cynanchum gerrardii
EOL (Encyclopedia of Life): Cynanchum gerrardii
GBIF (Global Biodiversity Information Facility): Cynanchum gerrardii
Google: Web - Images - Scholar
iNaturalist: Cynanchum gerrardii
IPNI (International Plant Names Index): Cynanchum gerrardii
JSTOR Plant Science: Cynanchum gerrardii
Mansfeld World Database of Agricultural and Horticultural Crops: Cynanchum gerrardii
Plants of the World Online: Cynanchum gerrardii
Tropicos: Cynanchum gerrardii
Wikipedia: Cynanchum gerrardii