s, Geum rivale.=

75b. Leaflets finely and regularly toothed, oblong; petals spreading
--71a.

76a. Leaflets entire below, 3-toothed at the apex (1-3 dm. high;
summer) =Cinquefoil, Potentilla tridentata.=

76b. Leaflets toothed all around the margin --77.

77a. Leaves all trifoliate (2-5 dm. high; late spring) --17b.

77b. Some of the upper leaves merely lobed or dentate (5-8 dm. high)
(Avens) --78.

78a. Stem bristly-hairy (early summer) =Avens, Geum virginianum.=

78b. Stem softly and finely pubescent (summer)
=Avens, Geum canadense.=

LEGUMINOSAE, the Pulse Family

Trees, shrubs, or herbs, with alternate compound (except 3 species with
simple) leaves and stipules; flowers usually irregular (except in a few
species), with a large upper petal and 4 smaller ones, the 2 lower
enclosing the stamens and pistil; stamens almost always 10, and
generally united by their filaments; pistil 1, simple, ripening into a
pod.

1a. Shrubs or trees --2.

1b. Herbs, twining, but without tendrils --9.

1c. Herbs; the leaves, or some of them, tipped with tendrils --12.

1d. Herbs, not climbing or twining; tendrils none --21.

2a. Leaves simple --3.

2b. Leaves compound --4.

3a. Leaves broadly cordate (tall shrub or small tree; flowers pink,
early spring) =Redbud, Cercis canadensis.=

3b. Leaves lanceolate or elliptical (3-6 dm. high; flowers yellow,
summer) =Dyer's Greenweed, Genista tinctoria.=

4a. Twigs or branches thorny --5.

4b. Thorns none --7.

5a. Thorns branched, scattered on the stem (tall tree; flowers greenish,
early summer) =Honey Locust, Gleditsia triacanthos.=

5b. Thorns unbranched, a pair of them at the base of each leaf (late
spring) --6.

6a. Branches glabrous or nearly so (tree; flowers white)
=Black Locust, Robinia pseudo-acacia.=

6b. Branches glandular-pubescent (tall shrub; flowers pinkish)
=Clammy Locust, Robinia viscosa.=

6c. Branches bristly (shrub. 1-3 m. high; flowers pink)
=Bristly Locust, Robinia hispida.=

7a. Trees; leaves 2-3-pinnate (flowers greenish-white, spring)
=Kentucky Coffee-tree, Gymnocladus dioica.=