Plate 1 figs. a–h · 3 observations
This species has been photographed under an open licence only 3 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.
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 58 botanical countries
| Region | TDWG code | Continent |
|---|---|---|
| Angola | ANG | AFRICA |
| Benin | BEN | |
| Burkina | BKN | |
| Burundi | BUR | |
| Cameroon | CMN | |
| Central African Republic | CAF | |
| Chad | CHA | |
| Congo | CON | |
| DR Congo | ZAI | |
| Ethiopia | ETH | |
| Gabon | GAB | |
| Gambia | GAM | |
| Ghana | GHA | |
| Guinea | GUI | |
| Guinea-Bissau | GNB | |
| Ivory Coast | IVO | |
| Malawi | MLW | |
| Mali | MLI | |
| Mozambique | MOZ | |
| Nigeria | NGA | |
| Senegal | SEN | |
| Sierra Leone | SIE | |
| Sudan-South Sudan | SUD | |
| Tanzania | TAN | |
| Togo | TOG | |
| Uganda | UGA | |
| Zambia | ZAM | |
| Assam | ASS | ASIA-TROPICAL |
| Bangladesh | BAN | |
| Bismarck Archipelago | BIS | |
| Cambodia | CBD | |
| East Himalaya | EHM | |
| India | IND | |
| Jawa | JAW | |
| Laos | LAO | |
| Lesser Sunda Is. | LSI | |
| Maluku | MOL | |
| Myanmar | MYA | |
| Nepal | NEP | |
| New Guinea | NWG | |
| Nicobar Is. | NCB | |
| Pakistan | PAK | |
| Philippines | PHI | |
| Sri Lanka | SRL | |
| Sulawesi | SUL | |
| Sumatera | SUM | |
| Thailand | THA | |
| Vietnam | VIE | |
| West Himalaya | WHM | |
| China South-Central | CHC | ASIA-TEMPERATE |
| China Southeast | CHS | |
| Hainan | CHH | |
| Nansei-shoto | NNS | |
| Taiwan | TAI | |
| Tibet | CHT | |
| Northern Territory | NTA | AUSTRALASIA |
| Queensland | QLD | |
| Western Australia | WAU |
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 72 observations
| Condition | 5th percentile | Median | 95th percentile |
|---|---|---|---|
| Coldest month, mean daily low | 10.9 °C | 14.2 °C | 16.9 °C |
| Warmest month, mean daily high | 28.6 °C | 30.5 °C | 34.4 °C |
| Annual rainfall | 818 mm | 1,120 mm | 3,276 mm |
| Rainfall in the driest quarter | 6 mm | 52 mm | 502 mm |
It is not found anywhere that gets close to freezing. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 72 research-grade observations of Crotalaria calycina 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 7 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.
- Crotalaria anthylloides D.Don
- Crotalaria crenata Wight & Arn.
- Crotalaria crinita Graham
- Crotalaria nipaulensis G.Don
- Crotalaria roxburghiana DC.
- Crotalaria roxburghii Spreng.
- Crotalaria stricta Roxb.
Sourcesevery claim on this page
- World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
- iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
- 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.