Flora of North America species comparison

erect and ascending, in clumps, sparsely strigulose.

erect or ascending, strigulose, canescent, cinereous, or greenish cinereous.

7–20 cm;

stipules 1–4 mm, membranous becoming papery;

leaflets (17 or)19–25(or 27), blades ovate, elliptic, or obovate to obcordate, 3–12 mm, apex retuse or obtuse, surfaces sparsely strigulose abaxially, silvery-canescent adaxially.

dimorphic, some unifoliolate distally and reduced to phyllodia, continuous with rachis, 2–10 cm;

stipules distinct throughout, 1–7 mm, papery at proximal nodes, herbaceous at distal nodes;

leaflets (1 or)3–19, blades linear, oblong, cuneate-oblong, or ovate, (3–)4–20 mm, apex acute, obtuse, truncate or retuse, surfaces strigose;

terminal leaflet decurrent distally, not jointed to rachis.

(5–)7–12(–15)-flowered, flowers spreading-ascending;

axis (4–)6–18 cm in fruit;

bracts 1–2.4 mm;

bracteoles 0–2.

(2–)5–30-flowered, flowers spreading-declined;

axis 3–20 cm in fruit;

bracts 0.5–3.2 mm;

bracteoles 0.

arising from near or proximal to middle of stem, erect and ascending, 9–20 cm, together with racemes as long as or longer than stems.

erect or incurved-ascending, (4–)6.5–30 cm.

1–4.8 mm.

0.8–2.5 mm.

12.6–15.7 mm;

calyx 6.1–7.6 mm, strigulose-villosulous, tube 4.1–5 mm, lobes subulate, 2–2.8 mm;

corolla ochroleucous;

banner recurved through 45°;

keel 9.7–11 mm, apex bluntly deltate.

12–19 mm;

calyx purplish, cylindric, 4.5–8 mm, strigose, tube 4–6.7 mm, lobes broadly subulate, 0.6–2.3 mm;

corolla pink-purple;

banner recurved through 35–50°;

keel 9–13 mm, apex bluntly or sharply deltate.

ascending, stramineous, slightly incurved, linear-lanceoloid, 3-sided compressed, 24–42 × 3.5–5.5 mm, thin becoming papery, glabrous;

gynophore stout, (0.8–)1.2–2.5 mm.

pendulous, green or reddish becoming stramineous, straight or gently decurved, oblong to oblanceoloid, strongly compressed, flattened laterally, 19–35 × (3–)3.5–6 mm, stiffly papery, glabrous;

stipe 4–11 mm.

20–24.

14–20.