Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

erect, decumbent, or incurved-ascending, with 2–4 much-elongated internodes, strigulose.

mostly reduced to phyllodia, few with leaflets, 0.8–10 cm;

stipules connate-sheathing throughout, 2–7 mm, papery-scarious;

leaflets 0(or 3–5), blades (phyllodia) oblanceolate to linear, 4–30 mm, apex acute, mucronate, or spinulose, surfaces strigose;

terminal leaflet often confluent with rachis.

(3–)5–17 cm;

stipules 4–7 mm, papery-scarious at proximal nodes, submembranous at distal nodes;

leaflets (11 or)13–21, blades oblong-obovate, ovate, linear-oblong, or linear-elliptic, 3–17 mm, apex truncate to deeply retuse or obtuse to subacute, surfaces strigulose.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

7–25(–30)-flowered, flowers nodding;

axis 1.5–12(–16) cm in fruit;

bracts 1–2.5 mm;

bracteoles 0–2.

erect or ascending, outer ones often prostrate in fruit, 0.4–9 cm.

incurved-ascending, 6–20(–24) cm.

0.3–1.7 mm.

0.7–5 mm.

5.7–9.5 mm;

calyx 2.6–5 mm, strigose, tube 1.9–3.4 mm, lobes subulate, 0.5–2.5 mm;

corolla pink purplish to ochroleucous or whitish;

banner recurved through 45°;

keel 4–6 mm.

(11.2–)12.5–16.6 mm;

calyx campanulate, 4.5–7 mm, strigulose, tube 3.8–5.5 mm, lobes subulate, 0.7–1.2(–1.5) mm;

corolla white, keel tip maculate;

banner recurved through 90°;

keel 8.8–10.7 mm.

erect, pale green tinged purple, with red-mottle, becoming brown or stramineous, straight or slightly curved, lanceoloid to lanceoloid-oblong, 2-sided, laterally compressed, 4–13 × 1.5–3.3 mm, papery, usually strigose, rarely glabrous;

sessile.

erect, stramineous, ± straight or slightly incurved, narrowly oblong or ovoid-oblong, obcompressed, 12–17 × 3.3–6.3 mm, ± bilocular, fleshy becoming leathery, glabrous;

septum 0.7–1.1 mm wide;

sessile.

4–12.

24–36.

= 24.