Geranium viscosissimumFisch. & C.A.Mey.

sticky geranium

WFO wfo-0000701561 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Geranium viscosissimum, photographed by Old Goat
fig. a Old Goat, CC BY-SA 4.0 / 2022-06-04 / obs. 203699874
Geranium viscosissimum, photographed by John Krampl
fig. b John Krampl, CC BY 4.0 / obs. 205022979
Geranium viscosissimum, photographed by Josiah Londerée
fig. c Josiah Londerée, CC BY 4.0 / obs. 202438972
Geranium viscosissimum, photographed by James H. Thomas
fig. d James H. Thomas, CC BY 4.0 / obs. 198246483
Geranium viscosissimum, photographed by Sawyer Baran
fig. e Sawyer Baran, CC BY 4.0 / obs. 146544723
Geranium viscosissimum, photographed by Erin Springinotic
fig. f Erin Springinotic, CC0 1.0 / obs. 144117358
Geranium viscosissimum, photographed by Logan
fig. g Logan, CC BY 4.0 / obs. 144418765
Geranium viscosissimum, photographed by Harrison J Elkins
fig. h Harrison J Elkins, CC BY 4.0 / obs. 160024381

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 = 1,333 observations

Peak flowering in Jun, from 1,333 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 15 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.

  • Geranium attenuilobum G.N.Jones & F.F.Jones
  • Geranium nervosum Rydb.
  • Geranium ornatum A.Nelson ex R.Knuth
  • Geranium richardsonii S.Watson ex R.Knuth
  • Geranium strigosior H.St.John
  • Geranium strigosius H.St.John
  • Geranium strigosum Rydb.
  • Geranium viscosissimum f. album (Suksd.) H.St.John
  • Geranium viscosissimum f. album H.St.John
  • Geranium viscosissimum f. viscosissimum
  • Geranium viscosissimum subsp. nervosum (Rydb.) W.A.Weber
  • Geranium viscosissimum var. album Suksd.
  • Geranium viscosissimum var. nervosum (Rydb.) C.L. Hitchc.
  • Geranium viscosissimum var. nervosum (Rydb.) C.L.Hitchc.
  • Geranium viscosissimum var. viscosissimum

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.