Flora of North America species comparison

erect or stiffly ascending, stout, with 5–10 well-developed internodes, pilose and tomentulose.

prostrate, usually villous-tomentose, sometimes glabrous.

(9–)13–35 cm;

stipules distinct 6–17 mm, herbaceous;

leaflet blades broadly to narrowly elliptic, ovate, oblong-elliptic, or rhombic-elliptic, (7–)10–55 mm, apex acute or abruptly short-acuminate, often callous-apiculate, surfaces pilose and tomentulose.

(1–)1.5–4.5 cm;

stipules distinct, 2–5 mm, submembranous becoming scarious;

leaflets (7 or)9–15, blades flat or loosely folded, narrowly elliptic to elliptic-oblanceolate, 2–11 mm, apex obtuse to subacute, surfaces strigulose abaxially, strigulose, glabrous, or glabrate adaxially.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

(2–)5–13-flowered, subcapitate, flowers loosely ascending;

axis 0.2–1 cm per fruit;

bracts 0.8–2 mm;

bracteoles 0.

erect, (8–)10–27 cm, together with racemes shorter than stems.

ascending, 0.6–1.7 cm, sometimes 2 or 3 per node.

(1.2–)1.5–9 mm.

0.7–2.5 mm.

(14.4–)15.5–22 mm;

calyx (7.8–)10–14.7 mm, silky-pilose or tomentulose, tube (6–)7–8.7 mm, lobes lanceolate-acuminate or linear-lanceolate, 3–6.5 mm;

corolla immaculate;

keel (11.5–)12–15.1 mm.

4.8–6.1 mm;

calyx campanulate, 3–3.9 mm, strigulose, tube 1.7–2.2 mm, lobes subulate, 1.1–1.7 mm;

corolla whitish, sometimes tinged lilac, banner veins purple;

banner recurved through 45–85°;

keel 3.4–4 mm, apex triangular, obtuse, somewhat beaklike.

stiffly erect, becoming brownish stramineous then blackish, 15–25 × 8–13 mm, fleshy becoming leathery, glabrous.

spreading or somewhat declined, stramineous or brownish, straight or somewhat incurved, ellipsoid or oblong-ellipsoid, 3-sided compressed, grooved dorsally, lateral faces flat, 4–7 × 1.5–2.5 mm, thin becoming papery, strigulose.

4–8.

= 22.