Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

sprawling, slender and delicate, forming entangled clumps, strigulose, green.

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.

2.5–10 cm;

stipules connate-sheathing at proximal nodes, distinct at distal nodes, 2–5 mm, thinly herbaceous or submembranous;

leaflets (9–)15–23(–27), blades narrowly elliptic, lanceolate, or ovate, 3–15 mm, apex subacute or obtuse, surfaces sparsely strigulose abaxially, glabrate adaxially.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

loosely (1 or)2 or 3(–5)-flowered;

axis 0.2–1 cm in fruit;

bracts 1.3–3.3 mm;

bracteoles 0–2.

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

ascending, 2–2.5 cm, shorter than leaves.

0.3–1.7 mm.

1.2–2.1 mm, 1.4–2.5 mm in fruit.

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.

8.5–11.8 mm;

calyx campanulate to subcylindric, 4–5.7 mm, densely to sparsely strigulose, tube 2.7–3.4 mm, lobes subulate or lanceolate-subulate, 1.1–2.5 mm;

corollas white, keel apex maculate with dull bluish purple;

banner recurved through 45°;

keel 6–7.5 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.

stramineous, slightly decurved, oblong- or lanceoloid-ellipsoid, obcompressed and bluntly 3-sided, faces low-convex, 8–14 × 2.5–4 mm, papery, translucent, sparsely strigulose, hairs 1.8–2.1 mm, unilocular;

stipe 0–1.5 mm.

4–12.

6–10.

= 24.