Flora of North America species comparison

prostrate, strigose-strigulose or villous to pilosulous.

ascending to erect, hollow but not fistulose, strigulose.

1–4(–6) cm;

stipules connate-sheathing at proximal nodes, mostly connate at distal nodes, sometimes distinct, 0.8–3(–5) mm, thinly herbaceous becoming papery;

leaflets 7–15, blades obovate-cuneate, 1.5–9 mm, apex obtuse, truncate, or emarginate, surfaces sparsely villosulous abaxially, glabrescent adaxially.

5–22 cm;

stipules 2–12 mm, submembranous, pallid;

leaflet blades oblong to elliptic or oblanceolate, 6–35 mm, apex acute to apiculate, surfaces strigose abaxially, glabrous adaxially.

densely or loosely 2–13(–15)-flowered, flowers ascending then declined;

axis 0.3–1.5 cm in fruit;

bracts 1.2–2.7 mm;

bracteoles 0.

20–70-flowered, flowers recurved in fruit;

axis 3–20 cm in fruit;

bracts 2–5 mm;

bracteoles 2.

0.3–2.5 cm.

ascending, 6–17 cm.

0.4–1.3 mm.

3.2–6.5 mm.

4.4–10(–12) mm;

calyx obconic-campanulate, (2.2–)2.6–4.7(–5) mm, sparsely villosulous, tube 1.1–2 mm, lobes subulate, 1–2.7 mm;

corolla whitish and banner veins faintly lilac, or rose-purple with pale basal eye;

banner recurved through 60–100°;

keel 3.5–3.7 mm, apex broadly deltate.

9–11(–12) mm;

calyx 3.6–4.7 mm, strigose, tube 3–3.5 mm, lobes triangular, 0.5–1.2 mm;

corolla keel 8–10 mm.

spreading, yellowish, straight, ovoid-lenticular, obscurely 3-sided, 3.3–4.5 × 1.5–4.2 mm, unilocular, thinly papery, minutely strigulose to silky-villous.

stramineous, curved-oblong, 13–23 × 2.5–4.5 mm, thinly fleshy becoming stiffly papery, strigose.

2 or 3(or 4).

= 16.