Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

erect or ascending, 2–10 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.

4–9(–11) cm;

stipules distinct throughout, 1–5 mm, papery-scarious at proximal nodes, herbaceous at distal nodes;

leaflets 11–21, blades linear or linear-elliptic to subfiliform, 8–30 mm, apex acute, obtuse, or truncate, surfaces strigulose abaxially, glabrate adaxially;

terminal leaflet usually continuous with rachis.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

(5–)15–45-flowered, flowers declined and secund;

axis 2–16 cm in fruit;

bracts 1–2 mm;

bracteoles 0.

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

arcuate-erect, (3.5–)6–12(–15) cm.

0.3–1.7 mm.

2.3–7 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.

13–17 mm;

calyx purplish or whitish, cylindric, 5.5–7 mm, strigose, tube 5–6.6 mm, lobes triangular-subulate, 0.5–1.1 mm;

corolla pale lemon yellow, concolorous;

banner recurved through 35°;

keel (9.5–)10–11.3 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, green or reddish becoming stramineous, straight or slightly curved, linear-oblong to lanceoloid or narrowly ellipsoid, strongly compressed, flattened laterally, (14–)20–33 × (3.5–)4–6 mm, papery, ± translucent in age, strigulose;

stipe 8–15 mm.

4–12.

11–17.

= 24.