Flora of North America species comparison

reduced to thick crowns.

prostrate to ascending, 2–7 cm underground, strigulose-cinereous.

1.5–14(–15) cm;

stipules (2.5–)4–11 mm, submembranous becoming scarious or papery;

leaflets 1–13(or 15), blades obovate to elliptic, oblanceolate, or orbiculate, 3–20 mm, apex acute to obtuse or retuse, surfaces villous-tomentulose.

reduced to phyllodia or terminally expanded rachis, 2.5–13 cm;

stipules distinct throughout, 2–7 mm, papery at proximal nodes, firm at distal nodes;

leaflets (1 or)3–7, blades linear-filiform or linear-involute, continuous with rachis, 3–17 mm, apex acute, surfaces strigulose.

2–8-flowered, flowers ascending;

axis 0.2–2.7 cm in fruit;

bracts 3.5–10 mm;

bracteoles 0–2.

(3–)7–20(–35)-flowered, flowers declined or nodding;

axis 2–18(–33) cm in fruit;

bracts 1.2–2.6 mm;

bracteoles 0 or 2.

0.5–11 cm.

ascending, 3.5–7.5 cm.

1.4–5 mm.

2–8 mm.

14–32 mm;

calyx cylindric or campanulate, 7–20 mm, villous, tube 5–16 mm, lobes subulate to lanceolate, 1–4 mm;

corolla pink-purple;

banner recurved through 40°;

keel 12–26 mm.

8–9 mm;

calyx campanulate, 4.6–6 mm, strigulose, tube 3.8–4.1 mm, lobes subulate or triangular-subulate, 0.8–1.9 mm;

corolla ochroleucous, immaculate;

banner recurved through 100–130°;

keel 8 mm, apex bluntly triangular.

ascending (humistrate), brown-stramineous, incurved, obliquely ovoid, obcompressed, (13–)18–28(–36) × 7–13(–17) mm, unilocular, fleshy becoming leathery, sparsely hirtellous to densely villous-tomentose, usually concealing surfaces.

declined or pendulous, stramineous, straight or nearly so, narrowly lanceoloid-oblong, strongly laterally compressed, 25–40 × 4–5.5 mm, papery, strigulose;

sessile.

27–40(–46).

14–18.