Hosackia gracilis (witch's-teeth)

Plate 1 figs. a–h

Hosackia gracilis, photographed by Scott Yarger — fig. a Scott Yarger, CC0 1.0 / 2022-04-30 / obs. 192560163

Hosackia gracilis, photographed by joergmlpts — fig. b joergmlpts, CC BY 4.0 / obs. 186812243

Hosackia gracilis, photographed by Caleb Catto — fig. c Caleb Catto, CC BY 4.0 / obs. 189019707

Hosackia gracilis, photographed by Randal — fig. d Randal, CC0 1.0 / obs. 143994259

Hosackia gracilis, photographed by Victor Heng — fig. e Victor Heng, CC BY 4.0 / obs. 185780751

Hosackia gracilis, photographed by Don Loarie — fig. f Don Loarie, CC BY 4.0 / obs. 126779585

Hosackia gracilis, photographed by Dee Shea Himes — fig. g Dee Shea Himes, CC BY 4.0 / obs. 121703995

Hosackia gracilis, photographed by Irene — fig. h Irene, CC0 1.0 / obs. 187074967

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.

Flowering n = 469 observations

171

197

Flowering observations of Hosackia gracilis by month
Month	Observations
Jan	0
Feb	2
Mar	31
Apr	171
May	197
Jun	59
Jul	8
Aug	1
Sep	0
Oct	0
Nov	0
Dec	0

Peak flowering in May, from 469 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 3 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.

Anisolotus formosissimus (Greene) Thornber
Anisolotus formosissimus (Greene) Thornber
Lotus formosissimus Greene

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.

We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.