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Key to Soliva

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1 Achenes (1.5-) 2.5-3.0 mm long, usually winged, the wings not transversely ribbed
1 Achenes 1.5-2.2 mm long, winged, transversely ribbed.
  2 Leaves mostly basal; leaf blades 3-8 (-15) cm long, 2-3× pinnatifid
  2 Leaves cauline and basal; leaf blades 1-2 (-3) cm long, 1 (-2)× pinnatifid