Teucrium canadenseL.

American germander

WFO wfo-0000321931 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Teucrium canadense, photographed by saltyhiker
fig. a saltyhiker, CC BY 4.0 / 2022-05-30 / obs. 202038685
Teucrium canadense, photographed by Sam Kieschnick
fig. b Sam Kieschnick, CC BY 4.0 / obs. 203986632
Teucrium canadense, photographed by florawhite
fig. c florawhite, CC BY 4.0 / obs. 200527075
Teucrium canadense, photographed by Center for Urban Ecology
fig. d Center for Urban Ecology, CC0 1.0 / obs. 197063435
Teucrium canadense, photographed by Center for Urban Ecology
fig. e Center for Urban Ecology, CC0 1.0 / obs. 198697681
Teucrium canadense, photographed by mefisher
fig. f mefisher, CC0 1.0 / obs. 191961711
Teucrium canadense, photographed by Yann Kemper
fig. g Yann Kemper, CC0 1.0 / obs. 162768913
Teucrium canadense, photographed by Athena Philips
fig. h Athena Philips, CC BY 4.0 / obs. 164924296

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 = 3,072 observations

Peak flowering in Jul, from 3,072 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 27 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.

  • Scorodonia macrophylla Moench
  • Teucrium boreale E.P.Bicknell
  • Teucrium bracteosum Raf.
  • Teucrium canadense f. albiflorum House
  • Teucrium canadense subsp. occidentale (A.Gray) W.A.Weber
  • Teucrium canadense subsp. viscidum (Piper) Roy L.Taylor & MacBryde
  • Teucrium canadense var. angustatum A.Gray
  • Teucrium canadense var. boreale (E.P.Bicknell) Shinners
  • Teucrium canadense var. littorale Fernald
  • Teucrium canadense var. nashii (Kearney) Shinners
  • Teucrium cinereum Raf.
  • Teucrium lanceolatum Raf. & Collins
  • Teucrium littorale E.P.Bicknell
  • Teucrium menthifolium E.P.Bicknell
  • Teucrium mexicanum Sessé & Moc.
  • Teucrium nashii Kearney
  • Teucrium occidentale A.Gray
  • Teucrium occidentale subsp. viscidum Piper
  • Teucrium occidentale var. boreale Fernald
  • Teucrium occidentale var. menthifolium Farw.
  • Teucrium occidentalis var. menthifolium (E.P.Bicknell) Farw.
  • Teucrium petiolare Raf.
  • Teucrium riparium Raf.
  • Teucrium roseum E.P.Bicknell

and 3 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.