Flora of North America species comparison

decumbent and ascending, sometimes fistulose, sparsely strigulose or glabrous.

erect, 0–7 cm underground, glabrous.

(5–)8–20 cm;

stipules mostly distinct, (2–)4–10 mm, papery at proximal nodes, herbaceous at distal nodes;

sessile or subsessile to short-petiolate;

leaflets 25–41, blades narrowly oblong, ovate-cuneate, or rhombic-ovate, (3–)6–30(–37) mm, apex truncate, emarginate and apiculate, or subacute, surfaces sparsely strigulose or glabrous abaxially, glabrous adaxially.

crowded, loosely imbricate, 1.5–6.5 cm;

stipules 2–15 mm, membranous;

leaflet blade ovate, orbiculate, or cordate, 15–65 mm, apex obtuse to rounded or retuse, surfaces glabrous.

(10–)20–45-flowered, flowers horizontal or declined;

axis 3.5–9 cm in fruit;

bracts 1.5–3.5 mm;

bracteoles 0.

2–12-flowered;

axis 0.4–2.5 cm in fruit;

bracts 1–5 mm;

bracteoles 2.

erect or incurved-ascending, 5.5–14 cm.

erect, 0.5–4.5 cm.

0.6–3.5 mm.

1–5 mm.

11.1–15.3 mm;

calyx broadly campanulate, obliquely truncate or subgibbous abaxially, 5–7.2(–7.7) mm, strigulose, tube 3.5–4.8(–5) mm, lobes subulate or triangular-subulate, (1–)1.3–2.6(–3) mm;

corolla white, greenish white, or ochroleucous;

keel 9.4–13.2 mm.

17–27 mm;

calyx 10–17 mm, black-strigose, tube 8.3–13 mm, lobes linear to subulate, 1.5–3.8 mm;

corolla keel 14.2–18.5 mm.

readily deciduous, horizontal or ascending, pale green or purplish stramineous, obliquely ovoid or semi-ovoid, bladdery-inflated, (18–)23–45(–50) × (10–)12–20 mm, thin becoming papery, translucent, sublustrous, sparsely strigulose or glabrate;

sessile.

pale green and purple-speckled becoming stramineous, straight, 25–35 × 11–16 mm, fleshy becoming leathery or stiffly papery, glabrous;

stipe 10–23 mm.

34–55.

= 22.

= 24.