Flora of North America species comparison

single or few, usually decumbent to ascending, rarely erect, villous-hirsutulous.

decumbent to erect, sterile branches forming tuft of sub-basal leaves, strigose, strigulose, or villous.

1.5–7 cm;

stipules distinct, 1–4 mm, subherbaceous becoming papery;

leaflets (5–)9–15, blades oblanceolate to oblong or obovate, 2–13 mm, apex retuse to truncate or obtuse, surfaces loosely villous, sometimes glabrate adaxially.

1.5–20 cm;

stipules connate-sheathing (bidentate) at proximal nodes, shortly connate or distinct at distal nodes, 1.5–9 mm, papery-membranous throughout or, sometimes, herbaceous at distal nodes;

leaflets 3–21, blades linear, oblong, elliptic, linear-elliptic, linear-oblanceolate, lanceolate, oblong-elliptic, elliptic-lanceolate, or, rarely, filiform-subulate (distally), 2–30(–42) × 0.5–7 mm, apex acute, obtuse, acuminate, apiculate, or, rarely, retuse, surfaces strigose, glabrescent, or glabrous abaxially, glabrous, glabrescent, or sparsely hairy adaxially;

terminal leaflet sometimes decurrent distally, not jointed to rachis.

2–7-flowered, flowers ascending-spreading;

axis 0.3–2.5 cm in fruit;

bracts 1–2.5 mm;

bracteoles 0.

3–19(–24)-flowered, flowers spreading-declined;

axis 1–14 cm in fruit;

bracts 0.6–4 mm;

bracteoles usually 0.

incurved-ascending, 0.5–4 cm.

usually incurved-ascending, 2–14 cm.

0.8–2 mm.

0.8–3 mm.

5.2–8 mm;

calyx campanulate, 3.3–6.2 mm, hirsutulous, tube 1.8–2.5 mm, lobes subulate, 1.8–3.5 mm;

corolla usually pink-purple, rarely ochroleucous and tinged with purple;

banner recurved 50–70°;

keel (5–)5.4–6.5 mm, apex narrowly triangular, sometimes slightly beaklike.

5.3–10.6 mm;

calyx (2.3–)2.4–6 mm, strigose, tube 1.7–4.2 mm, lobes subulate, 0.5–2.6 mm;

corolla lilac, pink-purple, ochroleucous, or whitish, often suffused, lined, or veined with purple;

banner recurved through 40–90°;

keel 5.9–10.7(–11.4) mm, apex beaklike.

spreading-declined, green or purple-cheeked or -dotted, becoming brownish or stramineous, lunately incurved or hooked, obliquely ovoid, turgid or somewhat inflated, 9–17(–20) × (4–)5–8(–11) mm, thinly fleshy becoming leathery or stiffly papery, white-villous or hirsute, hairs spreading, curved, 0.7–2.2 mm.

declined-pendulous; green, sometimes with purple speckles, becoming brown or stramineous, straight or nearly so, linear, linear-oblong, linear-ellipsoid, or oblanceoloid, laterally compressed, bicarinate by sutures, 11–25 × (1.2–)2–4 mm, papery, usually strigulose, villosulous, or glabrous, rarely with few hairs;

stipe 0–1 mm.

10–19.

6–19.

= 24.