Flora of North America species comparison

erect, single or several, unbranched or branched, sparsely pubescent, glandular, sometimes glutinous.

alternate, odd-pinnate;

stipules present, ovate to lanceolate, those of primary leaves broadly ovate;

petiolate;

leaflets 9–19, blade margins entire, surfaces pubescent, glandular-punctate.

15–50+-flowered, axillary, racemes;

bracts present, lanceolate.

papilionaceous;

calyx campanulate, slightly bilabiate, lobes 5, 2 adaxial lobes partly connate;

corolla yellow-white, purple-tinged, or bluish, banner erect to slightly recurved, lanceolate to narrowly ovate or oblong, 11–15 mm;

wings oblong, adherent to subacute keel, both progressively shorter than banner;

stamens 10, diadelphous;

anthers dorsifixed, dimorphic, thecae of smaller ones often connate distally;

ovary echinulate;

style incurved, glabrous, stigma capitate.

legumes, brown or purplish, stipitate, compressed, turgid, ellipsoid or oblong, indehiscent, glabrous or setaceous, setae hooked.

2–4, brown, obovoid, incurved proximal to hilum.

= 8.