Flora of North America species comparison

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

erect or ascending, 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.

4–15 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, 3–8(–12) mm, scarious;

leaflets (9 or)11–31, blades lanceolate-elliptic to linear-lanceolate, 3–35 mm, apex acute to acuminate, surfaces glabrous or glabrate, sometimes ciliate.

10–25-flowered;

axis (1–)2–5 cm in fruit;

bracts (2.5–)4–12 mm;

bracteoles 0–2.

9–45(–70)-flowered;

axis (3–)5–20(–25) cm in fruit;

bracts 1.5–7.5(–9) mm;

bracteoles 0–2.

erect, 1.5–5.5 cm.

erect, 3–13 cm.

0.5–2.3 mm.

2–8 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.

12–19(–21) mm;

calyx pallid or pinkish, short-cylindric, strongly gibbous, (7.3–)8.6–12(–19) mm, glabrous or sparsely strigose, tube (4.7–)5–6(–9) mm, lobes subulate or subulate-setaceous, (1.5–)3.3–6(–10) mm;

corolla usually white or ochroleucous, concolorous, rarely lightly suffused with purple or with purple veins, sometimes keel tip lilac;

banner recurved through 45°;

keel 10.8–15.2 mm.

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

stramineous, straight or slightly curved, linear-oblong, oblong-ellipsoid, or oblong-ovoid, sharply 3-sided compressed, faces of subequal width, nearly flat, 10–30 × 3–8 mm, papery, glabrous or sparsely strigose;

stipe (3.5–)4–6(–7) mm.

12–22.

= 24.