Chenopodium albumL.

Common Lambsquarters

WFO wfo-0000600897 Accepted WFO 2026-06 7 photographs CC0 / CC BY

Plate 1 figs. a–g

Chenopodium album, photographed by Tatiana Strus
fig. a Tatiana Strus, CC BY 4.0 / 2022-06-11 / obs. 205968647

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 = 735 observations

Flowering observations of Chenopodium album by month
MonthObservations
Jan13
Feb6
Mar14
Apr29
May33
Jun85
Jul145
Aug148
Sep130
Oct88
Nov25
Dec19

Peak flowering in Aug, from 735 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 98 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.

  • Anserina candidans (Lam.) Montandon
  • Atriplex alba (L.) Crantz
  • Atriplex viridis (L.) Crantz
  • Blitum viride (L.) Moench
  • Botrys alba (L.) Nieuwl.
  • Botrys alba var. pauper Lunell
  • Botrys ferulata Lunell
  • Botrys pagana (Rchb.) Lunell
  • Chenopodium agreste E.H.L.Krause
  • Chenopodium album f. cymigerum (W.D.J.Koch) Aellen
  • Chenopodium album f. dubium Arlt & Jüttersonke
  • Chenopodium album f. glomerulosum (Rchb.) Aellen
  • Chenopodium album f. heterophyllum Wang-Wei & P.Y.Fu
  • Chenopodium album f. lanceolatum (Muhl. ex Willd.) Schinz & Thell.
  • Chenopodium album f. leiospermum Kuntze
  • Chenopodium album f. opuliforme Aellen
  • Chenopodium album f. ovalifolium Aellen
  • Chenopodium album f. paucidentatum Aellen
  • Chenopodium album f. pseudozschackei Aellen
  • Chenopodium album f. spicatum (W.D.J.Koch) Aellen
  • Chenopodium album subsp. bernburgense Murr
  • Chenopodium album subsp. collinsii Murr
  • Chenopodium album subsp. densifoliatum Ludw. & Aellen
  • Chenopodium album subsp. hastatum (C.Klinggr.) Graebn.

and 74 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.