Flora of North America species comparison

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

erect, strigulose or glabrous, or glabrate proximally.

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.

3.5–11 cm;

stipules 2–9 mm, scarious;

leaflet blades broadly obovate-cuneate or obovate-flabellate, 7–15(–18) mm, apex obtuse to retuse, surfaces glabrous.

10–25-flowered;

axis (1–)2–5 cm in fruit;

bracts (2.5–)4–12 mm;

bracteoles 0–2.

(7–)12–33-flowered;

axis 4–20(–28) cm in fruit;

bracts 1–3.4 mm;

bracteoles 0.

erect, 1.5–5.5 cm.

erect, 3.5–15 cm.

0.5–2.3 mm.

0.5–2 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.

8–11 mm;

calyx 4.7–5.5 mm, strigulose, tube 3–3.5 mm, lobes subulate, 1.7–2 mm;

corolla white, drying ochroleucous;

banner recurved through 60–80°;

keel 6.8–7.7 mm.

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

incurved-ascending, green, sometimes purple-tinged or -mottled, becoming stramineous, sometimes suffused with purplish brown, incurved through 0.25 spiral, 8–15 × 3–5 mm, fleshy becoming leathery, glabrous;

stipe (2.5–)3–5 mm.

= 24.