Arnoglossum plantagineumRaf.

prairie Indian plantain

WFO wfo-0000073256 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Arnoglossum plantagineum, photographed by Michelle W. （鍾偉瑋）
fig. a Michelle W. （鍾偉瑋）, CC BY 4.0 / 2022-05-01 / obs. 194158020
Arnoglossum plantagineum, photographed by Angelique Todd
fig. b Angelique Todd, CC0 1.0 / obs. 200771248
Arnoglossum plantagineum, photographed by Brian Finzel
fig. c Brian Finzel, CC BY-SA 4.0 / obs. 201380500
Arnoglossum plantagineum, photographed by saltyhiker
fig. d saltyhiker, CC BY 4.0 / obs. 197680951
Arnoglossum plantagineum, photographed by Reid Hardin
fig. e Reid Hardin, CC BY 4.0 / obs. 194539407
Arnoglossum plantagineum, photographed by Steven Lamonde
fig. f Steven Lamonde, CC BY 4.0 / obs. 191615451
Arnoglossum plantagineum, photographed by Michelle Lopez
fig. g Michelle Lopez, CC0 1.0 / obs. 188000473
Arnoglossum plantagineum, photographed by John Michael
fig. h John Michael, CC BY 4.0 / obs. 184432513

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 = 356 observations

Peak flowering in May, from 356 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.

  • Cacalia plantaginea (Raf.) Shinners
  • Cacalia pteranthes Raf.
  • Cacalia tuberosa Nutt.
  • Conophora tuberosa Nieuwl.
  • Mesadenia plantaginea (Raf.) Raf.
  • Mesadenia tuberosa Britton
  • Senecio nuttallii Sch.Bip.

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.