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.

mostly in sub-basal cluster, (5–)8–20(–28) cm;

stipules connate-sheathing at proximal nodes, sometimes also at distal nodes, often connate at distal nodes, distalmost sometimes distinct, 3–10 mm, scarious becoming fragile;

leaflets (11–)15–27(–31), blades linear to narrowly lanceolate-elliptic or lanceolate-oblong to oblong, 2–25(–38) mm, apex obtuse to acute, surfaces usually strigulose, sometimes glabrescent adaxially.

10–25-flowered;

axis (1–)2–5 cm in fruit;

bracts (2.5–)4–12 mm;

bracteoles 0–2.

(6–)10–28-flowered, flowers nodding;

axis 4–17 cm in fruit;

bracts 2–4.5 mm;

bracteoles 2.

erect, 1.5–5.5 cm.

erect, 10–33 cm, together with racemes equaling or longer than stems.

0.5–2.3 mm.

0.8–4.5 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.

(10.8–)11.6–16.4 mm;

calyx campanulate, 5.3–8.6 mm, strigulose-pilosulous, tube 3.2–4.9(–5.8) mm, lobes subulate, 1.6–3.8 mm;

corolla whitish, immaculate;

banner recurved through 90°;

keel (8.9–)9.3–12.6 mm.

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

brownish, straight or slightly incurved, oblong-ellipsoid, 3-sided obcompressed, 16–27 × 4–7.5 mm, sub-bilocular, fleshy becoming stiffly leathery or woody, glabrous or strigulose;

valves inflexed, septum 0.4–1.3 mm wide;

stipe 3–5(–8) mm.

23–32.

= 24.

= 22.