This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol2", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Cracca virginiana L. Sp. Pl. 752. 1753.
Galega virginiana L. Sp. Pl. Ed. 2, 1062. 1763.
Tephrosia virginiana Pers. Syn. 2: 329. 1807.
Erect or ascending, more or less villous or silky-pubescent with whitish hairs, 1°-2° high. Roots long, fibrous, tough; leaves short-petioled; leaflets 7-25, oblong, linear-oblong or the terminal one oblanceolate, narrowed or cuneate at the base, rounded, mucronate acutish or emarginate at the apex. 9"-12" long, 2"-4" wide; flowers yellowish-purple, 6"-9" long, crowded in a terminal often compound nearly sessile raceme; pedicels 2"-4" long; pod linear, densely pubescent, 1'-2' long.
In dry sandy soil, Maine to Minnesota, Arkansas, Florida, Louisiana and northern Mexico: western races more copiously pubescent than eastern, have been regarded as specifically distinct as Cracca holo-sericea (Nutt.) Britten & Baker. Turkey-, rabbit- or hoary pea. Devil's shoestrings. June-July.
Galega spicata Walt. Fl. Car. 188. 1788.
Tephrosia spicata T. & G. Fl. N. A. 1: 296.
Cracca spicata Kuntze, Rev. Gen. Pl. 175. 1891.
Villous-pubescent with long brown hairs, decumbent or straggling, much branched, 1°-2° long. Leaves few and distant, short-petioled; leaflets 9-15, short-stalked, oval, oblanceolate or narrowly obovate, narrowed, cuneate or rounded at the base, obtuse, mu-cronate or emarginate at the apex, 9"-15" long, 3"-6" wide; peduncles lateral and terminal, slender, 4-10' long; inflorescence interrupted, very loose, 2'-5' long; flowers purplish, 6"-8" long; pod linear, finely pubescent, about 2' long, 22" wide.
In dry soil, Delaware to Florida, Tennessee, Alabama and Louisiana. This was included by Linnaeus in the preceding species. June-Aug.
Galega hispidula Michx. Fl. Bor. Am. 2: 68. 1803.
Tephrosa hispidula Pers. Syn. 2: 329. 1807.
Cracca hispidula Kuntze, Rev. Gen. Pl 175. 1891.
More or less pubescent, procumbent or straggling, much branched, slender, 1°-2° long. Leaves petioled; leaflets 5-19, short-stalked, oval, oblong, oblanceolate or obovate, narrowed, rounded or cuneate at the base, obtuse, emarginate or acute at the apex; peduncles lateral or terminal, slender, 2'-4' long; flowers red-purple, few, terminal, about 6" long; pod linear, l'-l 1/2' long, 2" wide, minutely pubescent.
Dry sandy soil, Virginia to Florida, Alabama and Louisiana. May-Aug.