1. C. tinctòria, Raf. Sometimes 50° high; pods 3–4´ long.—Rich hillsides, central Ky. and Tenn. to N. C. Also in cultivation. The wood yields a yellow dye.
4. SOPHÒRA, L.
Calyx bell-shaped, shortly 5-toothed. Standard rounded; keel nearly straight. Stamens distinct or nearly so. Pod coriaceous, stipitate, terete, more or less constricted between the seeds, indehiscent. Seeds subglobose.—Shrubby or ours an herbaceous perennial, the leaves pinnate with numerous leaflets, and flowers white or yellow in terminal racemes. (Said by Linnæus to be the ancient name of an allied plant.)
1. S. serícea, Nutt. Silky canescent, erect, 1° high or less; leaflets oblong-obovate, 3–6´´ long; flowers white; pods few-seeded.—Central Kan. to Col., Tex., and Ariz.
5. CROTALÀRIA, L. Rattle-box.
Calyx 5-cleft, scarcely 2-lipped. Standard large, heart-shaped; keel scythe-shaped. Sheath of the monadelphous stamens cleft on the upper side; 5 of the anthers smaller and roundish. Pod inflated, oblong, many-seeded.—Herbs with simple leaves. Flowers yellow. (Name from κρόταλον, a rattle; the loose seeds rattling in the coriaceous inflated pods.)
1. C. sagittàlis, L. Annual, hairy (3–6´ high); leaves oval or oblong-lanceolate, scarcely petioled, stipules united and decurrent on the stem, so as to be inversely arrow-shaped; peduncles few-flowered; corolla not longer than the calyx; pod blackish.—Sandy soil; Maine to Ill., Minn., Kan., and southward.
6. GENÍSTA, L. Woad-Waxen. Whin.
Calyx 2-lipped. Standard oblong-oval, spreading; keel oblong, straight, deflexed. Stamens monadelphous, the sheath entire; 5 alternate anthers shorter. Pod mostly flat and several-seeded.—Shrubby plants, with simple leaves, and yellow flowers. (Name from the Celtic gen, a bush.)
G. tinctòria, L. (Dyer's Green-weed.) Low, not thorny, with striate-angled erect branches; leaves lanceolate; flowers in spiked racemes.—Established on sterile hills, eastern N. Y. and Mass. (Adv. from Eu.)