Apocynum androsaemifoliumL.

spreading dogbane

WFO wfo-0000244138 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Apocynum androsaemifolium, photographed by Michelle Norcéide
fig. a Michelle Norcéide, CC BY 4.0 / 2022-06-13 / obs. 205904043
Apocynum androsaemifolium, photographed by Erik Schiff
fig. b Erik Schiff, CC0 1.0 / obs. 205832933
Apocynum androsaemifolium, photographed by Lynn Harper
fig. c Lynn Harper, CC0 1.0 / obs. 205893890
Apocynum androsaemifolium, photographed by Alec McClay
fig. d Alec McClay, CC BY 4.0 / obs. 205247217
Apocynum androsaemifolium, photographed by Ryan Sorrells
fig. e Ryan Sorrells, CC BY 4.0 / obs. 205625068
Apocynum androsaemifolium, photographed by Tom Field
fig. f Tom Field, CC BY 4.0 / obs. 205644939
Apocynum androsaemifolium, photographed by Mary Krieger
fig. g Mary Krieger, CC BY 4.0 / obs. 205036839
Apocynum androsaemifolium, photographed by Shane Johnson
fig. h Shane Johnson, CC0 1.0 / obs. 204525489

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 = 4,513 observations

Peak flowering in Jul, from 4,513 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 63 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.

  • Apocynum ambigens Greene
  • Apocynum ambigens var. bicolor (E.A.McGregor) Bég. & Belosersky
  • Apocynum ambigens var. typicum Bég. & Belosersky
  • Apocynum androsaemifolium f. pauciflora Peck
  • Apocynum androsaemifolium subsp. detonsum Piper
  • Apocynum androsaemifolium var. acuminatum Raf.
  • Apocynum androsaemifolium var. acutifolium Raf.
  • Apocynum androsaemifolium var. andrewsii Bég. & Belosersky
  • Apocynum androsaemifolium var. androsaemifolium
  • Apocynum androsaemifolium var. glabrum Macoun
  • Apocynum androsaemifolium var. microphyllum Bég. & Belosersky
  • Apocynum androsaemifolium var. nevadense Jeps.
  • Apocynum androsaemifolium var. oblongifolium Bég. & Belosersky
  • Apocynum androsaemifolium var. obtusifolium Raf.
  • Apocynum androsaemifolium var. orbiculatum Bég. & Belosersky
  • Apocynum androsaemifolium var. puberulum Bég. & Belosersky
  • Apocynum androsaemifolium var. pubescens Schwein.
  • Apocynum androsaemifolium var. pumilum A.Gray
  • Apocynum androsaemifolium var. typicum Bég. & Belosersky
  • Apocynum arcuatum Greene
  • Apocynum austinae Greene
  • Apocynum bicolor E.A.McGregor
  • Apocynum calophyllum Greene
  • Apocynum cardiophyllum Greene

and 39 more.

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.