Acmispon oroboides

Plate 1 figs. a–h · 8 separate observations

Acmispon oroboides, photographed by Mike Ostrowski — fig. c Mike Ostrowski, CC BY-SA 4.0 / obs. 147916466

Acmispon oroboides, photographed by Alexis López Hernández — fig. d Alexis López Hernández, CC BY 4.0 / obs. 96992526

Acmispon oroboides, photographed by José Belem Hernández Díaz — fig. f José Belem Hernández Díaz, CC BY 4.0 / obs. 91495458

Acmispon oroboides, photographed by Andrew Tree — fig. g Andrew Tree, CC BY 4.0 / obs. 87506317

Acmispon oroboides, photographed by Aaron Liston — fig. h Aaron Liston, CC BY 4.0 / obs. 46491926

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 10 botanical countries

Native distribution of Acmispon oroboides, 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.

Region	TDWG code	Continent
Arizona	ARI	NORTHERN AMERICA
Mexico Central	MXC
Mexico Gulf	MXG
Mexico Northeast	MXE
Mexico Northwest	MXN
Mexico Southwest	MXS
Nevada	NEV
New Mexico	NWM
Texas	TEX
Utah	UTA

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 247 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	-6.9 °C	-2.1 °C	4.0 °C
Warmest month, mean daily high	24.6 °C	30.6 °C	34.9 °C
Annual rainfall	313 mm	510 mm	680 mm
Rainfall in the driest quarter	27 mm	42 mm	60 mm

It is found where winters bring hard frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 247 research-grade observations of Acmispon oroboides 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 16 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.

Anil ehrenbergiana (Steud.) Kuntze
Anil hippocrepoides (Schltdl.) Kuntze
Anisolotus puberulus (Benth.) Wooton & Standl.
Cracca oroboides (Kunth) Kuntze
Hosackia angustifolia G.Don
Hosackia mexicana Benth.
Hosackia puberula Benth.
Indigofera ehrenbergiana Steud.
Indigofera hippocrepoides Schltdl.
Indigofera lotoides Schltdl.
Lotus angustifolius Moc. & Sessé ex G.Don
Lotus oroboides (Kunth) Ottley
Lotus puberulus (Benth.) Greene
Ottleya oroboides (Kunth) D.D.Sokoloff
Tephrosia oroboides Kunth
Tephrosia oroboides var. leiocarpa DC.

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.