Diodia virginiana Linnaeus. Large Buttonweed. Phen: Jun-Dec. Hab: Ditches, wet fields, wet swales along highways, other moist to wet habitats. Dist: CT, PA, IL, and KS south to FL and TX; West Indies; Mexico (YUC) and Central America.
ID notes:The leaves frequently turn bright yellow, caused by a viral infection.
Origin/Endemic status: Native
Synonymy: = GrPl, K4, Sorrie (2016a); = n/a – Pa; > Diodia hirsuta Pursh – S; > Diodia tetragona Walter – S; < Diodia virginiana L. – Ar, C, F, Fl5, G, GW2, Il, K3, Meso4.2, Mex, NcTx, RAB, Tn, Va, W, WH3, WI, WV; > Diodia virginiana L. – S; > Diodia virginiana L. var. attenuata Fernald – F, K1; > Diodia virginiana L. var. latifolia Torr. & A.Gray – K1; > Diodia virginiana L. var. virginiana – F, K1, NE
Wetland Indicator Status:
Heliophily: 8
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