n 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.=

34b. Stem 3-flowered; sepals usually red
=Anemone, Anemone multifida.=

35a. Achenes densely woolly; flowers appearing in summer --36.

35b. Achenes merely pubescent; stems 1-flowered; woodland species
blooming in early spring (1-2 dm. high; flowers white)