Flora of North America species comparison

reduced to thick crowns.

ascending to erect, flexuous, diffusely interbranched, 6–16 cm underground, proximalmost epigeous internodes the shortest, clumps to 1+ m wide, strigulose.

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.

1.5–6.5 cm, unifoliolate throughout or distally, terminal leaflet slightly expanded and confluent with filiform rachis;

stipules distinct throughout, 1–5 mm, membranous becoming papery at proximal nodes, herbaceous at distal nodes;

leaflets (1 or)3–9, blades linear-oblong to linear-elliptic or linear, 2–11 mm, apex acute, surfaces strigose;

terminal leaflet decurrent distally, not jointed to rachis.

2–8-flowered, flowers ascending;

axis 0.2–2.7 cm in fruit;

bracts 3.5–10 mm;

bracteoles 0–2.

3–17-flowered, flowers ascending;

axis 5–40(–42) cm in fruit;

bracts 0.5–1.1 mm;

bracteoles 0.

0.5–11 cm.

incurved-ascending, 6–19 cm.

1.4–5 mm.

1.5–5.5 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.

8–10.5 mm;

calyx campanulate, 2.5–4.6 mm, strigose, tube 1.5–3.7 mm, lobes triangular, 0.5–1.9 mm;

corolla pink-purple;

banner recurved through 50°;

keel 7.4 mm, apex obtuse to subacute, not beaklike.

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.

pendulous, stramineous, straight or decurved, narrowly ellipsoid, dorsiventrally or laterally compressed or subterete, 17–28 × 3.8 mm, papery, strigose or glabrous;

stipe 2.5–5 mm.

27–40(–46).

10–12.