Flora of North America species comparison

erect or ascending, usually flexuous and abruptly angled distal to each node, hirsute or hirsutulous.

single or to 3, prostrate to ascending or erect, strigulose.

3–10(–11) cm;

stipules lanceolate-attenuate, (1.5–)2.5–8(–9) mm, herbaceous, sometimes papery at proximal nodes;

leaflet blades obovate to elliptic, (3–)5–19 mm, apex acute to obtuse or retuse, surfaces pubescent abaxially, sometimes glabrous adaxially.

(1.5–)2–10.5(–12) cm;

stipules distinct, 1.5–4 mm, thinly herbaceous or submembranous;

leaflets (3–)7–13, blades linear, linear-oblong, oblanceolate, or linear-elliptic, rarely obcordate, 3–18 mm, apex obtuse to retuse, surfaces strigose abaxially, strigose or glabrous adaxially.

10–25-flowered;

axis (1–)2–5 cm in fruit;

bracts (2.5–)4–12 mm;

bracteoles 0–2.

2–8-flowered, flowers ascending;

axis 0.3–1.5 cm in fruit;

bracts 0.7–2 mm;

bracteoles 0–2.

erect, 1.5–5.5 cm.

incurved-ascending, 0.6–2.5 cm.

0.5–2.3 mm.

0.6–1.5 mm.

12–15.3 mm;

calyx 9.5–13 mm, hirsute to hirsutulous, tube 7–8.6 mm, lobes subulate to linear-subulate, 2.5–5.5 mm;

corolla bicolored, keel tip maculate.

5–7.6 mm;

calyx campanulate, (2–)2.7–3.8(–4) mm, strigose, tube 1.5–2.5 mm, lobes subulate to lanceolate, 0.6–1.5 mm;

corolla whitish, suffused with purple, or pink-purple;

banner recurved through 45°;

keel 3.8–4.8 mm, apex obtuse, deltate.

stramineous, incurved, (20–)25–40 × (4–)5–7(–8) mm, thin becoming papery, glabrous.

spreading to declined, green or suffused purple, becoming stramineous, straight or slightly incurved, obliquely ovoid, bladdery-inflated, 15–24 × 6–12 mm, unilocular or semibilocular, thin becoming papery, strigose, hairs straight, appressed;

seed-bearing flange 0.2–1.5 mm wide.

7–18.

= 24.