Flora of North America species comparison

erect or ascending, sparsely strigulose.

usually reduced to sessile crowns, rarely to 2.5 cm, internodes concealed by stipules, sometimes with thatch of persistent leaf rachises, hairs silvery.

2–15 cm;

stipules 1.5–5 mm, papery-scarious at proximal nodes, subherbaceous at distal nodes;

leaflet blades linear, linear-oblanceolate, or filiform, 5–30 mm, apex acute, subacute, or, often, mucronate, surfaces silvery-canescent, more densely so adaxially;

terminal leaflet sometimes decurrent distally, not jointed to rachis.

(4–)6–21 cm;

stipules (3–)5–12 mm, thinly herbaceous becoming papery;

leaflets 7–17(or 19), blades usually obovate, rhombic-obovate, elliptic-ovate, rarely flabellate, 5–20(–25) mm, apex obtuse or subacute, surfaces strigose.

(3–)5–25-flowered;

axis 2–20 cm in fruit;

bracts 1.5–4 mm;

bracteoles 2.

loosely (5–)7–16-flowered;

axis 1–4(–6) cm in fruit;

bracts 4–10 mm;

bracteoles 0(–2).

erect, 3–25 cm.

2–15 cm.

0.7–4 mm.

1.6–3.4 mm.

14.5–26 mm;

calyx 7.9–13.7 mm, strigulose, tube 6.5–10 mm, lobes lanceolate-subulate, 1.5–4.3 mm;

corolla keel 12.8–18.5 mm.

(16–)19–22 mm;

calyx cylindric or deeply campanulate, (9.4–)11–14.7 mm, villous (not silvery), tube (6.5–)7.6–9.8 mm, lobes lanceolate-subulate, 2.9–5.6 mm;

corolla pink-purple;

banner recurved through 40°;

keel (13–)15.5–17.2 mm.

firmly attached to receptacle, falling while still attached to pedicel, stramineous, straight or slightly incurved, obliquely ovoid or plumply oblong, 15–31 × 5–12 mm, fleshy becoming woody, glabrous;

septum (0–)1–2.5(–4) mm wide.

ascending (humistrate), brown or stramineous then blackish, ± straight in proximal 1/2, obliquely ovoid or ellipsoid, obcompressed, (20–)25–45 × (8–)9–18 mm, unilocular, fleshy becoming woody or very stiffly leathery, densely strigulose.

33–54(–66).