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..
Procumbent, glabrous or nearly so, stem terete below, striate above, sometimes 8° long. Stipules lanceolate or ovate-lanceolate; leaves petioled; leaflets ovate or oval, obtuse, glabrous or sparingly pubescent above, pale beneath, 1'-2 1/2' long, the terminal one slightly rhomboid; racemes terminal and axillary, panicled; bracts deciduous; flowers purple; calyx-lobes acute, the upper one 2-toothed, the others attenuate; loment 2-5-jointed, the joints obliquely semi-rhomboidal, less convex above than below, finely roughened; stipe about 2" long, equalling or rather longer than the calyx-lobes.
1838. M. sessilifolia Kuntze, Rev. Gen. Pl. 198. 1891.
Erect, 2°-4° high, uncinate-pubescent. Stipules small, deciduous; leaves very nearly sessile; leaflets linear or linear-oblong, obtuse at each end, nearly glabrous above, reticulate-veined and pubescent beneath, 1'-3' long, 3"-9" wide; racemes terminal, simple or compound; flowers small, a" - 3" long, purple; pedicels very short; bracts deciduous; calyx-lobes acute, the upper one obliquely 2-toothed; loment 1-3-jointed, the joints about 2" long, obliquely obovate, hispid, somewhat twisted, less convex above than below; stipe not exceeding the calyx-lobes.
In dry soil, Massachusetts, Rhode Island and Connecticut to Ontario, Michigan, Kentucky, Louisiana, Kansas, Arkansas and Texas. July-Sept.
Hedysarum strictum Pursh, Fl. Am. Sept. 483. 1814.
Desmodium strictum DC. Prodr. 2: 329. 1825.
Meibomia stricta Kuntze, Rev. Gen. PI. 198. 1891.
Erect, slender, finely roughish pubescent, 2°-4° high. Stipules subulate, deciduous; leaves petioled; leaflets linear, obtuse or acute, glabrous, thick, reticulate-veined, 1'-2 1/2' long, about 3" wide; flowers 1"-2" long; loment small, 1-3-jointed; joints semi-obovate or semi-rhomboid, often slightly concave on the back, uncinate-pubescent, about 2" long; pedicels short; stipe about equalling the calyx-lobes.
Pine barrens of New Jersey to Florida, west to Louisiana. July-Sept.