Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

incurved-ascending, decumbent, or prostrate, usually sparsely to densely strigulose or strigose-pilosulous, rarely silky-villosulous.

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.

1–5.5 cm;

stipules connate-sheathing and papery at proximal nodes, mostly connate and herbaceous at distal nodes, turning black in drying, 2–5 mm;

leaflets (5 or)7–13, blades elliptic, linear-elliptic, lanceolate, oblanceolate, or narrowly obovate, 2–12 mm, apex usually acute, sometimes obtuse or retuse and apiculate, surfaces strigose abaxially, silky-strigulose, villosulous, glabrescent, or glabrous adaxially.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

3–7(–11)-flowered, flowers spreading;

axis 0.5–3 cm in fruit;

bracts 0.5–2.7 mm;

bracteoles 0–1.

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

0.2–4 cm.

0.3–1.7 mm.

1.5–3.5(–4.2) 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.

(4.3–)5.2–9.3 mm;

calyx turbinate-campanulate to campanulate, 2.4–4.5 mm, strigose, tube 1.4–2.2 mm, lobes setaceous, (0.8–)1.3–2.5 mm;

corolla pink-purple, lilac, or whitish, sometimes lilac-tipped or -tinged, banner sometimes purple-veined, keel maculate;

banner abruptly recurved through 90°;

keel (2.9–)3.4–5.6 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.

deflexed or declined, stramineous, straight, ellipsoid, obovoid-ellipsoid, oblong-ellipsoid, or linear, laterally flattened, 3.5–12 × 1.8–3.5 mm, bicarinate, papery, strigose;

stipe 0–0.3 mm.

4–12.

(4 or)5–8(–11).

= 24.