Flora of North America species comparison

prostrate to ascending, 1–7 cm underground, gray-strigulose.

slender, ascending, strigulose.

2.5–9 cm;

stipules distinct, 2–8 mm, papery at proximal nodes, firm at distal nodes;

leaflets 7–15, jointed to rachis throughout, blades narrowly linear to linear-oblong, 2–12(–16) mm, apex obtuse to emarginate, surfaces strigulose.

2–4 cm;

stipules connate, bidentate, 2.5–5 mm, membranous;

leaflets 9–15, blades ovate-elliptic, 2.5–8 mm, apex obtuse or acute, surfaces strigulose.

(3–)7–20-flowered, flowers spreading or ± decurved;

axis 2–14 cm in fruit;

flowers declined or nodding;

bracts 0.8–2 mm;

bracteoles usually 0.

(1 or)2–4-flowered;

axis (1–)1.5–4 cm in fruit.

ascending or divaricate and incurved, 3.5–9.5 cm, surpassing leaves.

erect, very slender, 1.5–8 cm.

2–6 mm.

7.3–8.5 mm;

calyx campanulate, 4–5.9 mm, strigose, tube 3.2–4.5 mm, lobes subulate or triangular-subulate, 0.5–1.4 mm;

corolla ochroleucous, tinged or veined with lilac, or pinkish white;

banner strongly recurved through 100–130°;

keel 7–8 mm, apex bluntly triangular.

5–6.2 mm;

calyx 2–3.5 mm, strigose, hairs white or black, tube 1.2–2.5 mm, lobes linear-subulate, 0.7–1.2 mm.

declined or pendulous, green or purplish becoming brown-stramineous, straight or gently incurved or decurved, narrowly oblong to ellipsoid, strongly laterally compressed, (18–)22–35 × 3.2–4.6(–5) mm, stiffly papery, strigulose;

subsessile, base contracted into stout, stipelike neck 1–1.5 mm.

spreading or pendulous, red-mottled, ellipsoid, subinflated, slightly dorsiventrally compressed, 8–14 × 4–6 mm, thin becoming papery, strigulose or glabrous;

gynophore 0.5–0.8 mm.

(16–)20–24.

16–18.