Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

prostrate to decumbent-ascending, 5–14 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.

1.5–4.5 cm;

stipules distinct throughout, 2–6 mm, papery at proximal nodes, herbaceous at distal nodes;

leaflets 7–15, blades oblong to narrowly elliptic, 6–23 mm, apex retuse to truncate, surfaces strigose abaxially, glabrate adaxially.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

6–20-flowered, flowers nodding;

axis 1.5–8.5 cm in fruit;

bracts 0.6–1.2 mm;

bracteoles 1.

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

divaricate and incurved-ascending, 2–6.5 cm.

0.3–1.7 mm.

1.5–2.5 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.

8–9 mm;

calyx campanulate, 3.8–5.3 mm, strigose, tube 3.3–4 mm, lobes triangular, 0.5–1.3 mm;

corolla dull pink-purple, or lilac to vivid reddish purple;

banner recurved through 90–100°;

keel 8–8.5 mm, apex sharply deltate.

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 pendulous, green or faintly red-dotted becoming stramineous, usually straight or incurved, rarely decurved, narrowly ellipsoid, 3-sided compressed, 13–30 × 3–4.8 mm, semibilocular, papery, strigose;

valves inflexed, septum 0.3–0.6 mm;

stipe 0–0.8 mm.

4–12.

16 or 17.

= 24.