Veratrum californicumDurand

Corn Lily

WFO wfo-0000751689 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Veratrum californicum, photographed by Kimball Garrett
fig. a Kimball Garrett, CC0 1.0 / 2022-06-03 / obs. 203041131

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 = 668 observations

Flowering observations of Veratrum californicum by month
MonthObservations
Jan0
Feb0
Mar0
Apr0
May5
Jun109
Jul406
Aug137
Sep9
Oct2
Nov0
Dec0

Peak flowering in Jul, from 668 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 7 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.

  • Veratrum album var. californicum Wawra
  • Veratrum caudatum A.Heller
  • Veratrum caudatum var. tenuipetaloides O.Loes.
  • Veratrum eschcholtzii var. watsonii Baker
  • Veratrum jonesii A.Heller
  • Veratrum speciosum Rydb.
  • Veratrum tenuipetalum A.Heller

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.