Flora of North America species comparison

erect or ascending, pilosulous.

obscured by stipules and marcescent leaf bases.

both cauline and in sub-basal cluster, (5–)7–20 cm;

stipules connate-sheathing at proximal nodes, (3–)5–11 mm, fragile, submembranous early becoming papery-scarious;

leaflets 25–37, blades linear-elliptic, linear-oblong, oblanceolate, or ovate-oblong, 5–27 mm, apex obtuse, acute, or retuse, surfaces pilosulous, sometimes glabrous adaxially;

terminal leaflet often continuous with rachis.

unifoliolate or palmately trifoliolate, 1–3.5 cm;

stipules sometimes ruptured in age, 7–12 mm, hyaline;

leaflet blades spatulate to elliptic, (3–)5–9 mm, apex acute to subacute, surfaces silvery-pilosulous.

(6–)10–30-flowered, flowers ascending to spreading;

axis (3–)5–18 cm in fruit;

bracts 2–9.5 mm;

bracteoles 2.

1- or 2-flowered, capitate;

axis obsolete or very short;

bracts sometimes tridentate, 3–6 mm;

bracteoles 2.

erect, 12–30 cm, together with racemes longer than stems.

subobsolete.

1–3.7 mm.

subobsolete.

18–23 mm;

calyx short-cylindric, (10–)11–15 mm, strigulose-pilosulous, tube (5.7–)6–7.9 × 3.6–4.8 mm, lobes lanceolate or lanceolate-caudate, (2.6–)4.6–6.7(–7.5) mm;

corolla cream, immaculate;

banner recurved through 45°;

keel 13.4–15.6 mm.

12.3–17 mm;

calyx 8.3–10.5 mm, loosely villous, tube 5.9–6.5 mm, lobes linear to narrowly subulate, 2.4–4.2 mm;

corolla whitish to ochroleucous, petals glabrous abaxially;

banner differentiated into blade and claw, with shoulderlike projections at middle;

keel 11.1–12.8 mm.

brownish stramineous, ± straight, broadly oblong-ovoid to narrowly oblong-ellipsoid, obcompressed, 11–22 × 4.5–7.2 mm, unilocular or sub-bilocular, fleshy becoming stiffly leathery or subligneous, usually villous-pilose or glabrescent, rarely glabrous;

septum to 1 mm wide;

sessile.

green, straight or slightly decurved, narrowly ellipsoid, 7–10 × 2.5–3 mm, fleshy becoming leathery, densely strigose-hirsutulous.

11–14.