Chenopodium album Linnaeus var. album . Lamb's-quarters, Pigweed. Phen: Jun-Nov. Hab: Disturbed soils, gardens. Dist: Nearly cosmopolitan.

Origin/Endemic status: Native

Taxonomy Comments: Even with the 'missouriense' entity removed from (treated separately from) Chenopodium album var. album, that taxon likely includes both native and alien races and is now distributed nearly worldwide.

Synonymy ⓘ: = K1, K3, K4, Pa, Tn, Bassett & Crompton (1982), Wahl (1954); = Chenopodium album L. – F, Il, NcTx, Tx; > Chenopodium albescens Small – Tx; < Chenopodium album L. – Ar, Bah, FNA4, G, Mi, NE, NY, Ok, RAB, Tat, W, WH3; > Chenopodium album L. – C; > Chenopodium giganteum Don – Tx, Wahl (1954); > Chenopodium opulentum Schrad. – C

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACU (taxonomic split from wetland indicator species)
• Eastern Mountains and Piedmont: FACU (taxonomic split from wetland indicator species)
• Great Plains: FACU (taxonomic split from wetland indicator species)
• Midwest: FACU (taxonomic split from wetland indicator species)
• Northcentral & Northeast: FACU (taxonomic split from wetland indicator species)

Heliophily ⓘ: 8