Flora of North America species comparison

erect, pubescent [glabrous], hairs glandular, fine-appressed to spreading;

peduncles and pedicels glandular-hirsute.

branched, viscid, densely glandular-hirsute.

alternate, odd-pinnate;

stipules present;

petiolate;

leaflets [13–]19–25[–35], usually alternate, sometimes subopposite, stipels absent, blade margins entire, surfaces glabrous.

to 10 cm;

stipules caducous, lanceolate, to 5 mm, apex acuminate;

rachis densely glandular-hirsutulous;

pinna blade oval to obovate, 6–10 × 4–6 mm, base tapered or somewhat rounded, margins glandular-ciliolate, apex acute or rounded, surfaces with dark veins.

4–7-flowered, terminal and axillary, racemes;

bracts present;

bracteoles present.

4–6 cm;

bracts caducous, oblong, 2 mm;

bracteoles caducous, 2 per flower, elliptic to obovate, 2 mm, glandular-ciliolate.

densely glandular-hirsute.

7–8 mm, densely glandular-hirsute.

papilionaceous;

calyx campanulate, tubular basally, lobes 5;

corolla usually yellowish;

stamens 10, diadelphous;

anthers dorsifixed, ± uniform.

calyx usually glabrous, sometimes ciliolate, tube 5–6 mm, lobes lanceolate, 2 mm, apex acute or obtuse, glandular;

corolla: banner reflexed, rounded-obovate, to 10 mm, longer than wings and keel, with 2 callosities distal to base, not clawed, apex emarginate;

wings falcate, obliquely oblanceolate, shortly clawed, base auriculate, rounded, apex rounded;

keel connate distal to middle, falcate, obliquely oblanceolate, shorter than wings, base auriculate, apex ± acute;

ovary stipitate, densely pubescent.

legumes, stipitate, slightly inflated [to bladderlike], straight, oblong [lanceoloid-ellipsoid], dehiscent, pubescent.

slightly inflated, barely constricted between seeds, tapering to base and apex, 60–80 × 10 mm, muricate, ± tomentose.

4–14, oblong.

usually brown or black.