Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

decumbent to ascending, 3–13 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.

1.5–8.5 cm;

stipules connate-sheathing and stiff-papery at proximal nodes, connate or distinct at distal nodes, 3–9 mm;

leaflet blades oblong to elliptic or oblanceolate, some narrowly so, 2–19 mm, apex acute to obtuse or mucronate, surfaces sparsely strigose or glabrous abaxially, glabrous adaxially.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

4–22-flowered;

axis 1–7 cm in fruit;

bracts 1.5–7 mm;

bracteoles 0–2.

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

erect or incurved-ascending, 2–14 cm, shorter or much longer than leaves.

0.3–1.7 mm.

1–4 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.

18–24 mm;

calyx 9–11.5(–14) mm, strigulose, tube 6.5–8.5 mm, lobes subulate, 1.5–4(–6) mm;

corolla concolorous or keel faintly purplish;

keel 13.6–15.4 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.

green, sometimes also purple, becoming brown, incurved to nearly straight, sulcate abaxially, 18–35 × 3–6.5 mm, papery, glabrous;

valves inflexed as complete septum 2–4 mm wide;

stipe 4–9 mm.

4–12.

= 24.

= 22.