Turnera diffusaWilld. ex Schult.

damiana

WFO wfo-0001143048 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Turnera diffusa, photographed by Alan Weakley
fig. a Alan Weakley, CC0 1.0 / 2022-05-06 / obs. 196173692

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 25 botanical countries

Regions where Turnera diffusa is native: Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Texas, Bahamas, Belize, Brazil Northeast, Brazil Southeast, Cayman Is., Costa Rica, Cuba, Dominican Republic, El Salvador, Guatemala, Haiti, Honduras, Jamaica, Leeward Is., Nicaragua, Panamá, Puerto Rico, Turks-Caicos Is. Mexico CentralMexico GulfMexico NortheastMexico NorthwestMexico SoutheastMexico SouthwestTexasBelizeBrazil NortheastBrazil SoutheastCosta RicaCubaDominican RepublicEl SalvadorGuatemalaHaitiHondurasJamaicaNicaraguaPanamáPuerto Rico BahamasCayman Is.Leeward Is.Turks-Caicos Is.
Native distribution of Turnera diffusa, 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. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Bahamas BAH SOUTHERN AMERICA
Belize BLZ
Brazil Northeast BZE
Brazil Southeast BZL
Cayman Is. CAY
Costa Rica COS
Cuba CUB
Dominican Republic DOM
El Salvador ELS
Guatemala GUA
Haiti HAI
Honduras HON
Jamaica JAM
Leeward Is. LEE
Nicaragua NIC
Panamá PAN
Puerto Rico PUE
Turks-Caicos Is. TCI
Mexico Central MXC NORTHERN AMERICA
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Northwest MXN
Mexico Southeast MXT
Mexico Southwest MXS
Texas TEX

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 109 in flower of 113 examined

Proportion of examined Turnera diffusa in flower, by month
Month In flower Examined Share 95% interval
Jan 8 9 89% 56% to 98%
Feb 6 7 86% 49% to 97%
Mar 14 14 100% 78% to 100%
Apr 10 11 91% 62% to 98%
May 7 7 100% 65% to 100%
Jun 10 10 100% 72% to 100%
Jul 13 13 100% 77% to 100%
Aug 10 10 100% 72% to 100%
Sep 10 10 100% 72% to 100%
Oct 11 11 100% 74% to 100%
Nov 4 4 too few examined
Dec 6 7 86% 49% to 97%

Peak flowering in Mar. Each bar is the share of Turnera diffusa 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. 109 of 113 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. One month has fewer than 5 examined observations, so no proportion is drawn for it. 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.

Also published as 9 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.

  • Bohadschia humifusa C.Presl
  • Bohadschia microphylla Griseb.
  • Triacis microphylla (Desv.) Griseb.
  • Turnera aphrodisiaca Ward
  • Turnera diffusa var. aphrodisiaca (Ward) Urb.
  • Turnera diffusa var. diffusa
  • Turnera humifusa Endl. ex Walp.
  • Turnera microphylla Desv.
  • Turnera pringlei Rose

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.