Flora of North America species comparison

erect or ascending, sparsely strigulose.

spreading to ascending, erect when young, canescent-tomentulose, distinctly woody when over-wintering.

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.

2–8 cm;

stipules 2–5 mm, papery at proximal nodes;

leaflets 11–25, blades oblong-obovate, -elliptic, or -oblanceolate, (1.5–)3–12 mm, apex obtuse or retuse, surfaces villosulous.

(3–)5–25-flowered;

axis 2–20 cm in fruit;

bracts 1.5–4 mm;

bracteoles 2.

densely (15–)20–30-flowered;

axis 2–4 cm in fruit;

bracts 1.5–3 mm;

bracteoles 0–2.

erect, 3–25 cm.

ascending, sometimes humistrate in fruit, 6–12 cm.

0.7–4 mm.

0.5–2 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.

10.6–12.7 mm;

calyx campanulate, 5.7–6.4 mm, villosulous, tube 3.8–4.5 mm, lobes broadly subulate, 1.4–2.4 mm;

corolla pale yellow, concolorous;

keel 9–10 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.

brown-stramineous, lunate, obliquely narrow-ellipsoid, 3-sided compressed, 14–20 × 3–5 mm, thinly fleshy becoming stiffly papery, glabrous;

septum 1–1.3 mm wide;

stipe 4.5–9.5 mm.

16–20.