Flora of North America species comparison

erect or ascending, sparsely strigulose.

prostrate to ascending, 1–7 cm underground, gray-strigulose.

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.

2.5–9 cm;

stipules distinct, 2–8 mm, papery at proximal nodes, firm at distal nodes;

leaflets 7–15, jointed to rachis throughout, blades narrowly linear to linear-oblong, 2–12(–16) mm, apex obtuse to emarginate, surfaces strigulose.

(3–)5–25-flowered;

axis 2–20 cm in fruit;

bracts 1.5–4 mm;

bracteoles 2.

(3–)7–20-flowered, flowers spreading or ± decurved;

axis 2–14 cm in fruit;

flowers declined or nodding;

bracts 0.8–2 mm;

bracteoles usually 0.

erect, 3–25 cm.

ascending or divaricate and incurved, 3.5–9.5 cm, surpassing leaves.

0.7–4 mm.

2–6 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.

7.3–8.5 mm;

calyx campanulate, 4–5.9 mm, strigose, tube 3.2–4.5 mm, lobes subulate or triangular-subulate, 0.5–1.4 mm;

corolla ochroleucous, tinged or veined with lilac, or pinkish white;

banner strongly recurved through 100–130°;

keel 7–8 mm, apex bluntly triangular.

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.

declined or pendulous, green or purplish becoming brown-stramineous, straight or gently incurved or decurved, narrowly oblong to ellipsoid, strongly laterally compressed, (18–)22–35 × 3.2–4.6(–5) mm, stiffly papery, strigulose;

subsessile, base contracted into stout, stipelike neck 1–1.5 mm.

(16–)20–24.