Flora of North America species comparison

obscured by stipules.

prostrate to ascending or erect, strigulose.

0.6–2 cm;

stipules 3.5–7 mm, hyaline, glabrate or glabrous abaxially, ciliate;

leaflet blades spatulate to elliptic, 3–7.5 mm, apex acute, surfaces silvery-pilose.

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.

2- or 3-flowered;

axis very short;

bracts 2–3 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.

0.7–1.5 cm.

incurved-ascending, 2–15 cm.

1–1.5 mm.

1.8–4 mm.

(5.8–)6.6–8 mm;

calyx campanulate, 3.3–4.2 mm, densely pilose, tube 2.1–2.3 mm, lobes triangular-subulate, 1.2–2 mm;

corolla usually pink-purple, rarely white;

banner recurved through 90°, obovate-cuneate, (5.8–)6.6–8 mm;

wings (5.7–)6–6.8 mm;

keel 4.1–4.5 mm, apex bluntly deltate.

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, ovoid-ellipsoid, slightly compressed, 4–5 × 1.2–2 mm, papery, densely silky-strigose or silky-pilose.

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.

6–10.

10–16.