Geum laciniatum Murray. Rough Avens. Phen: Jun-Jul; Jul-Aug. Hab: Fens and wet meadows, rich alluvial soil of bottomland forests, especially over calcareous or mafic rocks. Dist: Two varieties are sometimes recognized: var. laciniatum has glabrous achenes and is generally more northern and more restricted in distribution than var. trichocarpum, which has achenes sparsely to densely pubescent with long stiff trichomes, and ranges from NS west to s. ON, south to MD, VA, w. NC, TN, OH, IL, MO, and KS
Origin/Endemic status: Native
Syn: = C, FNA9, GrPl, GW2, K3, K4, Mi, NY, Pa, RAB, Tn, Va, W, Bolle (1933); > Geum laciniatum var. laciniatum – F, G, Il, K1, NE, WV, Robertson (1974); > Geum laciniatum var. trichocarpum – F, G, Il, K1, NE, Robertson (1974)
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