1 |
Leaflets deeply divided up to the midrib, segments linear and revolute, achenes glabrous. |
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4 Potentilla Subgenus Fragariastrum Section Biflorae |
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Leaflets ¼ to ½ toothed, teeth ovate, not revolute, achenes pubescent or villose |
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(2) |
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2 (1) |
Caudices with remnants of decurved petioles, stipules of basal leaves thick, connate and adnate to the petioles nearly to the middle, achenes pubescent. |
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4 Potentilla Subgenus Fragariastrum Section Curvisetae |
+ |
Caudices without remnants of decurved petioles, stipules of basal leaves thin, connate and adnate to the petioles only at the base, achenes sericeo-villose. |
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4 Potentilla Subgenus Fragariastrum Section Eriocarpae |
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