Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

usually decumbent or ascending, sometimes erect, 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.

4–11 cm;

stipules connate-sheathing and papery at proximal nodes, connate or distinct and herbaceous at distal nodes, 1.5–10 mm;

leaflets (5–)9–15(–21), blades linear, filiform, or linear-oblanceolate, 15–70 mm, margins involute, apex acuminate, surfaces strigulose abaxially, glabrous adaxially;

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–)12–30-flowered, flowers nodding;

axis 3–13(–17) cm in fruit;

bracts 2–7 mm;

bracteoles 0.

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

incurved-ascending, (2–)3.5–8(–10.5) cm.

0.3–1.7 mm.

2–3(–3.5) 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.

(16–)21–24(–27) mm;

calyx 8–12 mm, strigulose, tube 6.5–9 × 2.8–4.3 mm, lobes subulate, 1.5–3 mm;

corolla white or ochroleucous, drying yellowish;

keel 13.8–16 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.

declined or deflexed, stramineous or brown, straight or slightly decurved, ellipsoid or oblong-ellipsoid to clavate-ellipsoid, ± obcompressed, (10–)15–25 × (4.5–)5–8 mm, woody, glabrous;

sessile.

4–12.

(23–)26–32.

= 24.

= 22.