Flora of North America species comparison

obscured by marcescent leaf bases and stipules.

diffuse or ascending, (0–)1–4 cm underground, gray-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.

sparse, 2.5–9 cm;

stipules distinct throughout, 1.5–4.5 mm, papery-membranous at proximal nodes, herbaceous at distal nodes;

leaflets 9–15, blades linear-lanceolate or -oblanceolate, 5–20(–27) mm, apex rounded to retuse, surfaces strigose;

terminal leaflet usually longer than adjacent pair.

densely 1–11-flowered;

axis 0.2–3.5 cm in fruit;

bracts 0.5–4 mm;

bracteoles 0.

3–12-flowered, flowers ascending-spreading;

axis 1–6 cm in fruit;

bracts 1–1.5 mm;

bracteoles 0–2.

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

incurved-ascending, 3–9 cm.

0.3–1.7 mm.

1–3 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.

11.5–12 mm;

calyx campanulate, 5.5–6.8 mm, strigose, tube 3.5–4.5 mm, lobes subulate or triangular, 2–2.7 mm;

corolla ochroleucous, often tinged or lined with purple;

banner recurved through 90°;

keel 9.2–10.4 mm, apex slightly beaked.

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 declined, stramineous or brownish with purple spots, straight, broadly and subsymmetrically ellipsoid, ovoid, or obovoid-ellipsoid, terete or somewhat dorsiventrally compressed, bladdery-inflated, 25–40 × 12–20 mm, papery, strigose;

stipe 0.7–1.5 mm.

4–12.

26–33.

= 24.