Cynanchum annularium(Roxb.) Liede & Khanum

WFO wfo-0001347017 Accepted WFO 2026-06 8 photographs CC0 / CC BY-SA

Plate 1 figs. a–h · 5 observations

This species has been photographed under an open licence only 5 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Cynanchum annularium, photographed by Dinesh Valke
fig. a Dinesh Valke, CC BY-SA 4.0 / 2021-09-18 / obs. 158202108
Cynanchum annularium, photographed by S.MORE
fig. b S.MORE, CC0 1.0 / obs. 156246170
Cynanchum annularium, photographed by Dinesh Valke
fig. c Dinesh Valke, CC BY-SA 4.0 / obs. 150301344
Cynanchum annularium, photographed by Dinesh Valke
fig. d Dinesh Valke, CC BY-SA 4.0 / obs. 117223777
Cynanchum annularium, photographed by Dinesh Valke
fig. e Dinesh Valke, CC BY-SA 4.0 / obs. 158202118
Cynanchum annularium, photographed by S.MORE
fig. f S.MORE, CC0 1.0 / obs. 156246366
Cynanchum annularium, photographed by Dinesh Valke
fig. g Dinesh Valke, CC BY-SA 4.0 / obs. 150301350
Cynanchum annularium, photographed by S.MORE
fig. h S.MORE, CC0 1.0 / obs. 159212256

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 12 botanical countries

Regions where Cynanchum annularium is native: China South-Central, China Southeast, Assam, Bangladesh, East Himalaya, India, Myanmar, Nepal, Pakistan, Sri Lanka, Thailand, West Himalaya China South-CentralChina SoutheastAssamBangladeshEast HimalayaIndiaMyanmarNepalPakistanSri LankaThailandWest Himalaya
Native distribution of Cynanchum annularium, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Assam ASS ASIA-TROPICAL
Bangladesh BAN
East Himalaya EHM
India IND
Myanmar MYA
Nepal NEP
Pakistan PAK
Sri Lanka SRL
Thailand THA
West Himalaya WHM
China South-Central CHC ASIA-TEMPERATE
China Southeast CHS

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 12 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Asclepias annularia Roxb.
  • Asclepias annularis Roxb.
  • Asclepias convolvulacea B.Heyne ex Decne.
  • Cynanchum annulare B.Heyne ex Wight
  • Gomphocarpus volubilis Buch.-Ham. ex Hook.f.
  • Holostemma ada-kodien Schult.
  • Holostemma annulare (Roxb.) K.Schum.
  • Holostemma annularis (Roxb.) K.Schum.
  • Holostemma brunonianum Royle
  • Holostemma rheedei Wall.
  • Holostemma rheedianum Spreng.
  • Sarcostemma annulare Roth

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.