Cerastium arvenseL.

field chickweed

WFO wfo-0000595158 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Cerastium arvense, photographed by evgeniq_benihanov
fig. a evgeniq_benihanov, CC BY 4.0 / 2022-06-12 / obs. 205737343
Cerastium arvense, photographed by Shane Johnson
fig. b Shane Johnson, CC0 1.0 / obs. 204540157
Cerastium arvense, photographed by Shane Johnson
fig. c Shane Johnson, CC0 1.0 / obs. 204541805
Cerastium arvense, photographed by Pavel Kacl
fig. d Pavel Kacl, CC BY 4.0 / obs. 205684836
Cerastium arvense, photographed by mfeaver
fig. e mfeaver, CC BY 4.0 / obs. 205583359
Cerastium arvense, photographed by Aleksei Baushev
fig. f Aleksei Baushev, CC BY 4.0 / obs. 203308722
Cerastium arvense, photographed by Braden J. Judson
fig. g Braden J. Judson, CC0 1.0 / obs. 205920453
Cerastium arvense, photographed by Miriam
fig. h Miriam, CC0 1.0 / obs. 205083661

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 = 2,723 observations

Peak flowering in May, from 2,723 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 84 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.

  • Alsine arvensis (L.) E.H.L.Krause
  • Centunculus angustifolius Scop.
  • Centunculus arvensis (L.) Scop.
  • Centunculus rigidus Scop.
  • Cerastium adscendens Wender. ex Steud.
  • Cerastium alpicolum Brügger
  • Cerastium alpinum All.
  • Cerastium alpinum subsp. suffruticosum (L.) Ces.
  • Cerastium ambiguum Fisch. ex Ser.
  • Cerastium angustifolium Vitman
  • Cerastium arvense f. arvense
  • Cerastium arvense f. calcicola (Schur) Niketić
  • Cerastium arvense f. capitatum (T.Georgiev) Niketić
  • Cerastium arvense f. eglandulosum Kuntze
  • Cerastium arvense f. glandulosum (Wedd.) Rohrb.
  • Cerastium arvense f. minus Beck
  • Cerastium arvense f. petrovicii Niketić
  • Cerastium arvense subsp. arvense
  • Cerastium arvense subsp. arvum (Schur) Schinz & R.Keller
  • Cerastium arvense subsp. calcicola (Schur) Borza
  • Cerastium arvense subsp. ciliatum (Waldst. & Kit.) Hayek
  • Cerastium arvense subsp. fuegianum (Hook.f.) Ugbor.
  • Cerastium arvense subsp. matrense (Kit. ex Spreng.) Jáv.
  • Cerastium arvense subsp. pallasii (Vest) Walters

and 60 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.