Flora of North America species comparison

erect, stiffly ascending, or basally decumbent, 0–4 cm underground, strigulose.

obscured by stipules.

(2.5–)3.5–10(–12) cm;

stipules connate at proximal nodes, distinct at distal nodes, 2.5–6 mm, submembranous becoming papery-scarious;

leaflets (13 or)15–25, blades orbiculate, ovate, obovate, lanceolate-elliptic, or oblong-elliptic, (2–)3–12 mm, apex rounded to emarginate, surfaces pubescent abaxially, glabrous adaxially.

0.6–2 cm;

stipules 3.5–7 mm, hyaline, glabrate or glabrous abaxially, ciliate;

leaflet blades spatulate to elliptic, 3–7.5 mm, apex acute, surfaces silvery-pilose.

densely becoming loosely (15–)20–45-flowered;

axis 2.5–6 cm in fruit;

bracts 1.2–2.5 mm;

bracteoles 0–2.

2- or 3-flowered;

axis very short;

bracts 2–3 mm;

bracteoles 0.

erect to ascending, 3.5–6(–10) cm, together with racemes usually shorter than stems.

0.7–1.5 cm.

1–1.3 mm, 1.2–1.5 mm in fruit.

1–1.5 mm.

9.6–10 mm;

calyx marcescent, 4.5–5.1 mm, strigulose, hairs black, sometimes also white, tube 3.3–4 mm, lobes triangular-subulate, 0.8–1.3 mm;

corolla ochroleucous, fading yellowish, keel immaculate;

banner gently incurved through 45–50°;

keel 6.4–7.6 mm.

(5.8–)6.6–8 mm;

calyx campanulate, 3.3–4.2 mm, densely pilose, tube 2.1–2.3 mm, lobes triangular-subulate, 1.2–2 mm;

corolla usually pink-purple, rarely white;

banner recurved through 90°, obovate-cuneate, (5.8–)6.6–8 mm;

wings (5.7–)6–6.8 mm;

keel 4.1–4.5 mm, apex bluntly deltate.

persisting and dehiscent on plant, slightly incurved, obliquely ellipsoid, laterally compressed and bluntly 3-sided, 10–15 × 4.5 mm, incompletely bilocular, thinly papery, strigulose;

valves inflexed as hyaline septum 0.4 mm wide;

stipe 5–6 mm.

ascending, ovoid-ellipsoid, slightly compressed, 4–5 × 1.2–2 mm, papery, densely silky-strigose or silky-pilose.

6–10.

6–10.

= 22.