Stenaria nigricans(Lam.) Terrell

diamond-flowers

WFO wfo-0000316075 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Stenaria nigricans, photographed by saltyhiker
fig. a saltyhiker, CC BY 4.0 / 2022-05-14 / obs. 197680023
Stenaria nigricans, photographed by saltyhiker
fig. b saltyhiker, CC BY 4.0 / obs. 204751028
Stenaria nigricans, photographed by Luke Padon
fig. c Luke Padon, CC BY 4.0 / obs. 197619814
Stenaria nigricans, photographed by Annika Lindqvist
fig. d Annika Lindqvist, CC BY 4.0 / obs. 198442116
Stenaria nigricans, photographed by johnyochum
fig. e johnyochum, CC BY 4.0 / obs. 194119410
Stenaria nigricans, photographed by Reid Hardin
fig. f Reid Hardin, CC BY 4.0 / obs. 176615456
Stenaria nigricans, photographed by Cecelia Alexander
fig. g Cecelia Alexander, CC0 1.0 / obs. 163884817
Stenaria nigricans, photographed by Tom Field
fig. h Tom Field, CC BY 4.0 / obs. 169012385

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 = 642 observations

Peak flowering in May, from 642 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 33 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.

  • Chamisme angustifolia (Michx.) Nieuwl.
  • Gentiana nigricans Lam.
  • Hedyotis fruticosa Walp.
  • Hedyotis lasiantha Nutt. ex A.Gray
  • Hedyotis nigricans (Lam.) Fosberg
  • Hedyotis nigricans f. salina (A.Heller) W.H.Lewis
  • Hedyotis nigricans var. austrotexana B.L.Turner
  • Hedyotis nigricans var. filifolia (Chapm.) Shinners
  • Hedyotis nigricans var. floridana (Standl.) Wunderlin
  • Hedyotis nigricans var. gypsophila B.L.Turner
  • Hedyotis nigricans var. papillacea B.L.Turner
  • Hedyotis nigricans var. pulvinata (Small) Fosberg
  • Hedyotis nigricans var. scabra (S.Watson) Fosberg
  • Hedyotis purpurea var. floridana (Standl.) Fosberg
  • Hedyotis rupestris Walp.
  • Hedyotis salina (A.Heller) Shinners
  • Hedyotis stenophylla Torr. & A.Gray
  • Houstonia angustifolia Michx.
  • Houstonia angustifolia var. filifolia (Chapm.) A.Gray
  • Houstonia angustifolia var. scabra S.Watson
  • Houstonia filifolia (Chapm.) Small
  • Houstonia floridana Standl.
  • Houstonia fruticosa Raf. ex A.Gray
  • Houstonia nigricans (Lam.) Fernald

and 9 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.

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.