Thunbergia coccineaWall. ex D.Don

WFO wfo-0001228948 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 6 observations

This species has been photographed under an open licence only 6 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.

Thunbergia coccinea, photographed by Sabarni Sarker
fig. a Sabarni Sarker, CC BY 4.0 / 2022-02-08 / obs. 178691269

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 Thunbergia coccinea is native: China South-Central, Tibet, Assam, Bangladesh, East Himalaya, India, Laos, Myanmar, Nepal, Thailand, Vietnam, West Himalaya China South-CentralTibetAssamBangladeshEast HimalayaIndiaLaosMyanmarNepalThailandVietnamWest Himalaya
Native distribution of Thunbergia coccinea, 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
Laos LAO
Myanmar MYA
Nepal NEP
Thailand THA
Vietnam VIE
West Himalaya WHM
China South-Central CHC ASIA-TEMPERATE
Tibet CHT

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.

Flowering 38 in flower of 42 examined

Proportion of examined Thunbergia coccinea in flower, by month
Month In flower Examined Share 95% interval
Jan 11 11 100% 74% to 100%
Feb 1 1 too few examined
Mar 0 1 too few examined
Apr 4 4 too few examined
May 0 1 too few examined
Jun 1 1 too few examined
Jul 2 2 too few examined
Aug 1 1 too few examined
Sep 2 2 too few examined
Oct 1 2 too few examined
Nov 8 9 89% 56% to 98%
Dec 7 7 100% 65% to 100%

Peak flowering in Jan. Each bar is the share of Thunbergia coccinea observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 38 of 42 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 9 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 6 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.

  • Flemingia coccinea Buch.-Ham. ex Nees
  • Hexacentris acuminata Nees
  • Hexacentris coccinea (Wall.) Nees
  • Hexacentris dentata Nees
  • Thunbergia pendula Hassk.
  • Thunbergia quinquenervis Buch.-Ham. ex Nees

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.