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Potentilla norvegica Linnaeus. Strawberry-weed, Rough Cinquefoil. Phen: Late May-Dec; Jun-Dec. Hab: Floodplain forests, alluvial openings; sand bars, pastures, fields, disturbed areas, especially where moist. Dist: This species is apparently a genetically diverse, circumboreal species complex, with both native and introduced elements now present in our area.

Origin/Endemic status: Native

Taxonomy Comments: Entities in this complex have not been adequately worked out. As well-stated by Haines (2011): "Our native North American race (ssp. monspeliensis) generally shows obovate leaflets and hirsute-type hairs on the stem (some high-elevation plants have ± glabrous stem, these recognized by some authors as var. labradorica). The European form (ssp. norvegica), which has been introduced to North America, generally shows oblong leaflets and fine hairs on the stem (Rydberg 1898). However, these differences are not absolute, and many researchers recognize a broadly defined Potentilla norvegica instead of multiple taxa."

Synonymy: = Ar, C, FNA9, G, GrPl, Il, K3, K4, Mi, NE, NY, RAB, Tn, Tx, Va, W, WV; > Potentilla monspeliensis L. – S; > Potentilla norvegica L. ssp. hirsuta (Michx.) Hyl.; > Potentilla norvegica L. ssp. monspeliensis (L.) Asch. & Graebn. – K1, Pa; > Potentilla norvegica L. var. labradorica (Lehm.) Fernald – F; > Potentilla norvegica L. var. norvegica – F

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image of plant© Bruce Patterson | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷