Flora of North America species comparison

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

few, decumbent or prostrate to ascending, (0–)1.5–13 cm underground, hirsutulous.

(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.

4.5–14 cm;

stipules 2–7 mm, stramineous or whitish-papery at proximal nodes, submembranous at distal nodes;

leaflets 15–29, blades obovate to oblong or elliptic, 3–25 mm, apex obtuse to emarginate, surfaces hirtellous abaxially, glabrous adaxially.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

10–24-flowered, flowers ascending-spreading;

axis 1.2–10 cm in fruit;

bracts 3–5 mm;

bracteoles 0–2.

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

incurved-ascending, procumbent in fruit, 4–12 mm.

(1.2–)1.5–9 mm.

1–2.5 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.

16–22 mm;

calyx cylindric, 10–15 mm, hirsutulous, tube 7–12 mm, lobes linear-subulate, 2–6.2 mm;

corolla dull pink-purple;

keel 16–17 mm.

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

firmly attached to receptacle, falling while still attached to pedicel, declined to ascending (sometimes humistrate), brown or purple-dotted, incurved through 0.25–0.5 spiral, oblong, laterally compressed, sides convex, elliptic in cross section, dorsal suture forming a prominent ridge, 25–40 × 5–8 mm, bilocular, middle narrower or not wider than high in cross section, ± fleshy becoming papery, hirsutulous, hairs 0.3–0.5 mm;

stipe 2–3 mm.

24–30.

= 22.