Rhynchosia totta(Thunb.) DC.

snoutbean

WFO wfo-0000187502 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Rhynchosia totta, photographed by Andrew Hankey
fig. a Andrew Hankey, CC BY-SA 4.0 / 2022-03-05 / obs. 181929199

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
Smithsonian, US National Herbarium
Accession
US 3700989
Filed as
Rhynchosia totta (Thunb.) DC.
Det. by
Kolberg, H. H.
Collected
H. H. Kolberg & T. Tholkes 2013-01-31
Origin
NA
The sheet
View the digitised specimen (CC0 1.0)

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 24 botanical countries

Regions where Rhynchosia totta is native: Angola, Botswana, Cameroon, Cape Provinces, Chad, Eritrea, Eswatini, Ethiopia, Free State, Kenya, KwaZulu-Natal, Lesotho, Malawi, Mozambique, Namibia, Niger, Northern Provinces, Somalia, Sudan-South Sudan, Tanzania, Uganda, Zambia, Zimbabwe, Yemen AngolaBotswanaCameroonCape ProvincesChadEritreaEswatiniEthiopiaFree StateKenyaKwaZulu-NatalLesothoMalawiMozambiqueNamibiaNigerNorthern ProvincesSomaliaSudan-South SudanTanzaniaUgandaZambiaZimbabweYemen
Native distribution of Rhynchosia totta, 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
Angola ANG AFRICA
Botswana BOT
Cameroon CMN
Cape Provinces CPP
Chad CHA
Eritrea ERI
Eswatini SWZ
Ethiopia ETH
Free State OFS
Kenya KEN
KwaZulu-Natal NAT
Lesotho LES
Malawi MLW
Mozambique MOZ
Namibia NAM
Niger NGR
Northern Provinces TVL
Somalia SOM
Sudan-South Sudan SUD
Tanzania TAN
Uganda UGA
Zambia ZAM
Zimbabwe ZIM
Yemen YEM ASIA-TEMPERATE

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 30 in flower of 38 examined

Proportion of examined Rhynchosia totta in flower, by month
Month In flower Examined Share 95% interval
Jan 1 2 too few examined
Feb 4 4 too few examined
Mar 3 3 too few examined
Apr 6 8 75% 41% to 93%
May 2 4 too few examined
Jun 2 2 too few examined
Jul 0 0 too few examined
Aug 1 1 too few examined
Sep 1 2 too few examined
Oct 1 1 too few examined
Nov 3 5 60% 23% to 88%
Dec 6 6 100% 61% to 100%

Peak flowering in Dec. Each bar is the share of Rhynchosia totta 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. 30 of 38 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.

Where it actually grows measured, from 149 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 2.4 °C 5.1 °C 12.3 °C
Warmest month, mean daily high 24.7 °C 28.0 °C 32.3 °C
Annual rainfall 320 mm 638 mm 935 mm
Rainfall in the driest quarter 2 mm 18 mm 49 mm

It is found where winters are cool but frost is light or absent. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 149 research-grade observations of Rhynchosia totta 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. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 34 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.

  • Copisma paniculatum E.Mey.
  • Copisma pilosum E.Mey.
  • Copisma tottum (Thunb.) E.Mey.
  • Copisma trichodes E.Mey.
  • Dolicholus filicaulis (Welw. ex Baker) Hiern
  • Dolicholus totta (Thunb.) Kuntze
  • Dolicholus venulosus Hiern
  • Glycine totta Thunb.
  • Rhynchosia airica Miré & H.Gillet
  • Rhynchosia cinnamomea Schinz
  • Rhynchosia dinteri Schinz
  • Rhynchosia elegantissima Schinz
  • Rhynchosia filicaulis Welw. ex Baker
  • Rhynchosia hirsuta Schinz
  • Rhynchosia humilis Eckl. & Zeyh.
  • Rhynchosia longiflora Schinz
  • Rhynchosia lynesii Baker f. & W.Martin
  • Rhynchosia mollis Burtt Davy
  • Rhynchosia namaensis Schinz
  • Rhynchosia nervosa var. petiolata Burtt Davy
  • Rhynchosia paniculata (E.Mey.) Steud.
  • Rhynchosia pilosa (E.Mey.) Steud.
  • Rhynchosia remota Conrath
  • Rhynchosia rigidula DC.

and 10 more.

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. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. 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.