Blainvillea gayanaCass.

WFO wfo-0000081264 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Blainvillea gayana, photographed by Breno Figueiredo
fig. a Breno Figueiredo, CC BY 4.0 / 2021-07-16 / obs. 148931612
Blainvillea gayana, photographed by Breno Figueiredo
fig. b Breno Figueiredo, CC BY 4.0 / obs. 142883577
Blainvillea gayana, photographed by Breno Figueiredo
fig. c Breno Figueiredo, CC BY 4.0 / obs. 142880165
Blainvillea gayana, photographed by Breno Figueiredo
fig. d Breno Figueiredo, CC BY 4.0 / obs. 142879886
Blainvillea gayana, photographed by Robert Taylor
fig. e Robert Taylor, CC BY 4.0 / obs. 113974918
Blainvillea gayana, photographed by Robert Taylor
fig. f Robert Taylor, CC BY 4.0 / obs. 64593305
Blainvillea gayana, photographed by Breno Figueiredo
fig. g Breno Figueiredo, CC BY 4.0 / obs. 141420852
Blainvillea gayana, photographed by Robert Taylor
fig. h Robert Taylor, CC BY 4.0 / obs. 193564285

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.

The specimen a real sheet, in a real collection

Herbarium
The New York Botanical Garden
Accession
1692074
Filed as
Blainvillea gayana Cass.
Det. by
H. J. T. Venter 2004-01-01
Collected
H. J. T. Venter 2004-02-29
Origin
ZA
The sheet
View the digitised specimen (CC BY 4.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Native range 19 botanical countries

Regions where Blainvillea gayana is native: Angola, Botswana, Burkina, Cameroon, Cape Verde, Chad, Djibouti, Eritrea, Ethiopia, Mali, Mauritania, Mozambique, Northern Provinces, Senegal, Tanzania, Zambia, Zimbabwe, Saudi Arabia, Yemen AngolaBotswanaBurkinaCameroonChadDjiboutiEritreaEthiopiaMaliMauritaniaMozambiqueNorthern ProvincesSenegalTanzaniaZambiaZimbabweSaudi ArabiaYemen Cape Verde
Native distribution of Blainvillea gayana, 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. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Angola ANG AFRICA
Botswana BOT
Burkina BKN
Cameroon CMN
Cape Verde CVI
Chad CHA
Djibouti DJI
Eritrea ERI
Ethiopia ETH
Mali MLI
Mauritania MTN
Mozambique MOZ
Northern Provinces TVL
Senegal SEN
Tanzania TAN
Zambia ZAM
Zimbabwe ZIM
Saudi Arabia SAU ASIA-TEMPERATE
Yemen YEM

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.

Where it actually grows measured, from 37 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 6.9 °C 10.7 °C 22.2 °C
Warmest month, mean daily high 28.2 °C 32.5 °C 35.4 °C
Annual rainfall 361 mm 526 mm 1,094 mm
Rainfall in the driest quarter 2 mm 17 mm 92 mm

It is barely found anywhere that freezes. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 37 research-grade observations of Blainvillea gayana that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 4 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.

  • Aspilia gayana (Cass.) Benth. & Hook.f. ex B.D.Jacks.
  • Blainvillea gayana var. gayana
  • Wedelia gossweileri S.Moore
  • Wedelia triseta Peter

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.