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..
Robinia hispida L. Mant. 101. 1767.
A much-branched shrub, 3°-9° high. Twigs, petioles, pedicels and rachises of the leaves bristly; stipules very small, or none; leaflets 9-13, stalked, broadly ovate or oblong, entire, mainly obtuse or rounded at each end, mucronate, 1'-2' long; stipels none or subulate; racemes loose; pedicels 3"-6" long; flowers pink or purple,8"-15" long, not fragrant; pods linear, bristly-hispid.
24. S…SBAN Adans. Fam. Pl. 2: 327. 1763.
Herbs or shrubs, with evenly pinnate leaves, the leaflets numerous, entire, not stipellate, or the stipels minute. Flowers yellow, reddish, purplish or white, in axillary or lateral racemes, the slender pedicels with 2 deciduous bractlets under the calyx. Calyx campanulate, nearly equally 5-toothed. Standard broad, ovate or orbicular; wings oblong, falcate; keel blunt. Stamens diadelphous (.9 and 1). Ovary mostly stipitate, many-ovuled; style glabrous; stigma small. Pod elongated-linear, wingless, compressed, partitioned between the oblong seeds. [Name Arabic]
About 15 species, natives of warm and tropical regions, only the following one known in North America. Type species: Aeschynomene Sesban L.
Sesbania macrocarpa Muhl.; Ell. Bot. S. C. & Ga. 2: 221. 1821.
Annual, glabrous, widely branching, 4°-12° tall. Leaflets 10-35 pairs, oblong, obtuse, mucronate, thin, 1' long or less, 2"-3' wide, pale beneath; racemes shorter than the leaves, 1-5-flowered; calyx-teeth subulate, shorter than the tube; corolla yellowish, purple-spotted, the standard 8"-10" long; pod 6'-12' long, about 2" wide, somewhat curved, drooping, tipped with the subulate style.
In wet or moist soil, Missouri to Texas. Arizona, east to South Carolina and Florida, south to Central America. Collected also in southern Pennsylvania and in ballast deposits on Staten Island, New York. June-Sept.
Colýtea arborťscens L., a European shrub, with odd-pinnate leaves, yellow flowers in short racemes, and much inflated membranous pods. is reported as escaped from cultivation in eastern Massachusetts.