Castilleja affinisHook. & Arn.

Coast Paintbrush

WFO wfo-0000590012 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Castilleja affinis, photographed by Ken-ichi Ueda
fig. a Ken-ichi Ueda, CC BY 4.0 / 2022-03-26 / obs. 185156004
Castilleja affinis, photographed by rappman
fig. b rappman, CC BY 4.0 / obs. 202065467
Castilleja affinis, photographed by Zoltán Stekkelpak
fig. c Zoltán Stekkelpak, CC0 1.0 / obs. 181683941
Castilleja affinis, photographed by Jeffrey Lee (he/him/his)
fig. d Jeffrey Lee (he/him/his), CC BY 4.0 / obs. 203900517
Castilleja affinis, photographed by Chuck Wilson
fig. e Chuck Wilson, CC0 1.0 / obs. 188039238
Castilleja affinis, photographed by Christine Rudman
fig. f Christine Rudman, CC0 1.0 / obs. 180108721
Castilleja affinis, photographed by Irene
fig. g Irene, CC0 1.0 / obs. 204293233
Castilleja affinis, photographed by Chuck Wilson
fig. h Chuck Wilson, CC0 1.0 / obs. 183230354

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.

Confused withby our own model

These are not lookalikes we guessed at. Each one is a species our identification model genuinely mistook for this plant, and how many times. The error rate is published.

Flowering n = 1,639 observations

Peak flowering in Apr, from 1,639 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 17 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.

  • Castilleja affinis subsp. affinis
  • Castilleja affinis subsp. insularis (Eastw.) Munz
  • Castilleja affinis subsp. neglecta (Zeile) T.I.Chuang & Heckard
  • Castilleja anacapensis Dunkle
  • Castilleja californica Abrams
  • Castilleja douglasii Benth.
  • Castilleja douglasii subsp. insularis (Eastw.) Pennell
  • Castilleja douglasii var. contentiosa J.F.Macbr.
  • Castilleja inflata Pennell
  • Castilleja latifolia subsp. insularis Eastw.
  • Castilleja multisecta Eastw.
  • Castilleja neglecta Zeile
  • Castilleja parviflora var. californica (Abrams) Zeile
  • Castilleja parviflora var. douglasii (Benth.) Jeps.
  • Castilleja polytoma Eastw.
  • Castilleja wightii subsp. anacapensis (Dunkle) Pennell
  • Castilleja wightii subsp. inflata (Pennell) Munz

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.