23b. Stem-leaves one or none, the principal leaves all basal (about 1 dm. high; flowers in summer) =Buttercup, Ranunculus lapponicus.= 24a. Style short, obviously curved --25. 24b. Style long and slender, straight or nearly so (common spring-flowering buttercups, 2-5 dm. high) --26. 25a. Stems creeping; flowers 2 cm. wide or more (spring) =Buttercup, Ranunculus repens.= 25b. Stems ascending; flowers 1.5 cm. wide or less (3-6 dm. high; summer) =Buttercup, Ranunculus macounii.= 26a. The two lateral divisions of the leaf sessile or nearly so =Buttercup, Ranunculus fascicularis.= 26b. The two lateral divisions of the leaf on long stalks --27. 27a. Roots fibrous; plants of wet soil =Buttercup, Ranunculus septentrionalis.= 27b. Roots thickened; plants of dry woods or thickets =Buttercup, Ranunculus hispidus.= 28a. Leaves dissected into numerous narrowly linear acute divisions (4-7 dm. high; flowers large, bluish, in summer) =Love-in-a-mist, Nigella damascena.= 28b. Leaves lobed or divided, but the divisions not separated by definite stalks --29. 28c. Leaves truly compound, all their divisions separated by distinct stalks --39. 29a. Leaves all basal, their lobes (usually 3) entire (1-2 dm. high; flowers pink-purple, in earliest spring) (Hepatica) --30. 29b. Lobes of the leaf serrate or incised --31. 30a. Lobes of the leaf obtuse or rounded =Hepatica, Hepatica triloba.= 30b. Lobes of the leaf acute =Hepatica, Hepatica acutiloba.= 31a. Petals none; sepals 3, usually falling away as soon as the flower opens (2-4 dm. high; flowers greenish-white, in spring) =Golden Seal, Hydrastis canadensis.= 31b. Petals none; sepals petal-like, 4 or more (Anemone) --32. 31c. Petals present, but much smaller than the 5 petal-like sepals --38. 32a. Stem-leaves sessile or nearly so --33. 32b. Stem-leaves on definite petioles --35. 33a. Ovary tipped with a long slender hairy style; flowers bluish-purple (1-4 dm. high; early spring) =Pasque Flower, Anemone patens var. wolfgangiana.= 33b. Ovary with a short style, densely woolly; flowers red, greenish, or white (1-4 dm. high; late spring and summer) --34. 33c. Ovary tipped with a short style, glabrous or nearly so; flowers white (4-7 dm. high; late spring and early summer) =Anemone, Anemone canadensis.= 34a. Stem 1-flowered, sepals white =Anemone, Anemone parviflora.=