Erigeron karvinskianusDC.

Mexican Fleabane

WFO wfo-0000005955 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Erigeron karvinskianus, photographed by Matthew Vosper
fig. a Matthew Vosper, CC BY 4.0 / 2022-05-21 / obs. 200838009

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 = 2,767 observations

Flowering observations of Erigeron karvinskianus by month
MonthObservations
Jan117
Feb114
Mar141
Apr476
May407
Jun223
Jul194
Aug180
Sep218
Oct302
Nov237
Dec158

Peak flowering in Apr, from 2,767 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 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.

  • Erigeron deamii B.L.Rob.
  • Erigeron karvinskianus var. karvinskianus
  • Erigeron karvinskianus var. mucronatum DC.
  • Erigeron karvinskianus var. mucronatus Hieron.
  • Erigeron karvinskianus var. mucronatus (DC.) Asch.
  • Erigeron mucronatus DC.
  • Erigeron pacayensis Greenm.
  • Erigeron trilobus Sond.
  • Erigeron tripartitus S.F.Blake

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.