Grindelia pulchellaDunal

WFO wfo-0000018709 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Grindelia pulchella, photographed by Romi Galeota Lencina
fig. a Romi Galeota Lencina, CC BY 4.0 / 2022-03-06 / obs. 181875873

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 5 botanical countries

Regions where Grindelia pulchella is native: Argentina Northeast, Argentina Northwest, Argentina South, Brazil South, Uruguay Argentina NortheastArgentina NorthwestArgentina SouthBrazil SouthUruguay
Native distribution of Grindelia pulchella, 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.
RegionTDWG codeContinent
Argentina Northeast AGE SOUTHERN AMERICA
Argentina Northwest AGW
Argentina South AGS
Brazil South BZS
Uruguay URU

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 105 in flower of 109 examined

Proportion of examined Grindelia pulchella in flower, by month
Month In flower Examined Share 95% interval
Jan 11 11 100% 74% to 100%
Feb 28 28 100% 88% to 100%
Mar 14 14 100% 78% to 100%
Apr 10 10 100% 72% to 100%
May 10 10 100% 72% to 100%
Jun 0 0 too few examined
Jul 1 1 too few examined
Aug 0 0 too few examined
Sep 0 0 too few examined
Oct 5 7 71% 36% to 92%
Nov 11 13 85% 58% to 96%
Dec 15 15 100% 80% to 100%

Peak flowering in Jan. Each bar is the share of Grindelia pulchella 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. 105 of 109 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 4 months have fewer than 5 examined observations, so no proportion is drawn for them. 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 4 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.

  • Grindelia anomala DC.
  • Grindelia diffusa Hook. & Arn.
  • Grindelia discoidea Hook. & Arn.
  • Grindelia pulchella var. normalis Kuntze

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. 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.