Flora of North America species comparison

reduced to crowns.

prostrate to ascending or erect, strigulose.

1.5–13 cm;

stipules 3.5–10 mm, firmly papery;

leaflets (1 or)3 or 5, blades elliptic to lanceolate, 5–35(–47) mm, apex acute to obtuse, surfaces strigose.

distal leaves often unifoliolate, leaflets and rachis often expanded into flat, grasslike blade, 1.5–7 cm;

stipules connate-sheathing and papery-scarious at proximal nodes, distinct or basally connate and herbaceous at distal nodes, 1–3 mm;

petiole flattened or short and continuous with rachis;

leaflets 1–7, blades narrowly elliptic, linear, oblanceolate, or lanceolate, 4–47(–67) × 1–5 mm, apex acute or acuminate, surfaces usually strigose, sometimes glabrous adaxially;

terminal leaflet longer, sometimes decurrent distally, not jointed to rachis.

1–6-flowered, flowers erect-ascending;

axis 0.2–1.4 cm in fruit;

bracts 1.6–4 mm;

bracteoles 0.

(1 or)2–8-flowered, flowers ascending;

axis 0.5–3 cm in fruit;

bracts 0.7–2.5 mm;

bracteoles 0.

ascending, 0.5–7 cm.

incurved-ascending, 2–15 cm.

1.2–4 mm.

1.8–4 mm.

(18.5–)20–28 mm;

calyx cylindric, 12–16 mm, strigose-pilose, tube 9.5–13.5 mm, lobes subulate, 1.5–4 mm;

corolla pink-purple;

banner recurved through 40°;

keel (18–)19–22.7 mm.

8–13.5 mm;

calyx (3.5–)4.4–6.7 mm, strigose, tube 3.2–4.7 mm, lobes broadly subulate, 1–2 mm;

corolla greenish white, often tinged with purple;

banner recurved through 50–80°;

keel 7.8–11 mm, apex broadly triangular.

ascending to spreading (humistrate), green or purplish, incurved, obliquely ovoid, dorsiventrally compressed, 15–36 × 8–17 mm, unilocular, thickly succulent becoming alveolate-spongy, spongy-thickened cellular tissue 1.5–2 mm thick, hirsutulous to villous-hirsute, hairs spreading, 0.6–2 mm.

ascending to declined, stramineous, straight or slightly decurved, narrowly oblong, strongly laterally compressed, bicarinate, 10–17 × 2.7–4 mm, papery, strigose;

stipe 0.5–1.3 mm.

33–53.

10–16.