Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

erect and ascending; densely 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.

distalmost unifoliolate, sometimes also proximalmost, 3–8 cm;

stipules usually distinct throughout, rarely shortly connate-sheathing at proximal nodes, 1.5–9.5 mm, firm, early becoming papery;

leaflets (1 or)3–7, blades elliptic to narrowly oblanceolate, 10–47 × 2–9(–13) mm, apex obtuse to retuse, surfaces strigose;

terminal leaflet decurrent, not jointed to rachis.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

7–30-flowered, flowers spreading-declined;

axis 2–11 cm in fruit;

bracts 1–2.5 mm;

bracteoles 0–2.

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

erect and incurved-ascending, 2.5–15.5 cm.

0.3–1.7 mm.

1.2–3 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.

(16–)20–24 mm;

calyx light brown, cylindric-gibbous, (7–)8.2–11(–12) mm, strigose, tube (5.5–)6.5–9.2 mm, lobes subulate, 1.7–2.6(–4) mm;

corolla ochroleucous, concolorous;

banner recurved through 45°;

keel 13.7–16.6 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, brown, straight, ellipsoid, dorsiventrally compressed, sometimes becoming subterete, 25–35 × 4–7.5 mm, papery, strigose;

stipe 8–12 mm.

4–12.

16–22.

= 24.