Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

prostrate, usually villous-tomentose, sometimes glabrous.

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.

(1–)1.5–4.5 cm;

stipules distinct, 2–5 mm, submembranous becoming scarious;

leaflets (7 or)9–15, blades flat or loosely folded, narrowly elliptic to elliptic-oblanceolate, 2–11 mm, apex obtuse to subacute, surfaces strigulose abaxially, strigulose, glabrous, or glabrate adaxially.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

(2–)5–13-flowered, subcapitate, flowers loosely ascending;

axis 0.2–1 cm per fruit;

bracts 0.8–2 mm;

bracteoles 0.

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

ascending, 0.6–1.7 cm, sometimes 2 or 3 per node.

0.3–1.7 mm.

0.7–2.5 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.

4.8–6.1 mm;

calyx campanulate, 3–3.9 mm, strigulose, tube 1.7–2.2 mm, lobes subulate, 1.1–1.7 mm;

corolla whitish, sometimes tinged lilac, banner veins purple;

banner recurved through 45–85°;

keel 3.4–4 mm, apex triangular, obtuse, somewhat beaklike.

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.

spreading or somewhat declined, stramineous or brownish, straight or somewhat incurved, ellipsoid or oblong-ellipsoid, 3-sided compressed, grooved dorsally, lateral faces flat, 4–7 × 1.5–2.5 mm, thin becoming papery, strigulose.

4–12.

4–8.

= 24.