Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

erect, 1–8 cm underground, 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.

2–13 cm;

stipules distinct throughout, 1–9(–10) mm, stiff-papery at proximal nodes, herbaceous becoming papery at distal nodes;

leaflets (1 or)3–9(or 11), blades linear to narrowly oblanceolate, 2–36 × 0.5–4 mm, apex obtuse to acute, surfaces usually strigose, sometimes glabrous adaxially;

terminal leaflet decurrent distally, not jointed to rachis.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

7–40+-flowered, flowers spreading-declined;

axis 3.5–45 cm in fruit;

bracts 0.8–2.5 mm;

bracteoles 0.

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

erect or incurved-ascending, 6–24 cm.

0.3–1.7 mm.

1.3–4.5 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.

13–20 mm;

calyx brown, cylindric-gibbous, 5.8–10.3 mm, strigose, tube 5–8 mm, lobes subulate, 0.6–2.5 mm;

corolla ochroleucous to nearly white, concolorous;

banner recurved through 50°;

keel 10.5–14 mm, apex bluntly or sharply deltate.

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.

pendulous, often brownish, straight or slightly curved, ellipsoid to oblong, dorsiventrally compressed, convex, 22–50 × 3.3–6.2(–7.5) mm, stiffly papery, faces smooth or cross-reticulate, strigose or glabrous;

stipe 3–15 mm.

4–12.

12–26.

= 24.

= 22.