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*Acetosa acetosella (Linnaeus) P. Miller. Red Dock, Sheep Sorrel, Sourgrass. Phen: Mar-Sep; May-Nov. Hab: Pastures, fields, roadsides, rock outcrops, grassy balds, gardens. Dist: Native of Eurasia. Variation in Acetosa acetosella has been studied in considerable detail in Eurasia, and a number of infrataxa named; the application of these to North American material is unclear at this time.

Origin/Endemic status: Eurasia

Taxonomy Comments: Variation in this species remains poorly understood. Rumex acetosella ssp. pyrenaicus (Pourret ex Lapeyrouse) Akeroyd, a hexaploid subspecies from western Europe, is apparently the predominant naturalized subspecies in North America. See Mosyakin in FNA (2005) and the references cited therein for further information.

Synonymy: = Acetosella acetosella (L.) Small – S; = Rumex acetosella L. – Ar, C, Fl4, FNA5, G, GrPl, GW2, Il, K1, K3, K4, Mi, NcTx, Pa, RAB, Tn, Tx, Va, W, WH3, WV; = Rumex acetosella L. ssp. pyrenaicus (Pourr. ex Lapeyr.) Akeroyd – Stace (2010); < Acetosella vulgaris (Koch) Fourr.; > Acetosella vulgaris (Koch) Fourr. ssp. pyrenaica (Pourr. ex Lapeyr.) Á.Löve – Löve (1983); > Acetosella vulgaris (Koch) Fourr. ssp. vulgaris – Löve (1983); > Rumex acetosella L. ssp. pyrenaicus (Pourr. ex Lapeyr.) Akeroyd – NE, NY; > Rumex acetosella L. var. acetosella – F; > Rumex acetosella L. var. pyrenaeus (Pourr. ex Lapeyr.) Timbal-Lagrave – F, orthographic error

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image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Alan Weakley source | Original Image ⭷
image of plant© Keith Bradley | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
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