Flora of North America species comparison

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

erect or ascending, 0–2.5 cm underground, sparsely villosulous or glabrous proximally.

(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.

(3–)4–12 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, (1.5–)2–6 mm, scarious;

leaflet blades narrowly oblong-elliptic, oblanceolate, linear-oblong, or oblong-obovate, (3–)5–20(–23) mm, apex acute to subobtuse or retuse, surfaces villosulous.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

6–12(–14)-flowered;

axis 2.5–10 cm in fruit;

bracts 1.3–4.5 mm;

bracteoles 0–2.

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

erect or narrowly ascending, (4.5–)6–15 cm.

(1.2–)1.5–9 mm.

1–3.5 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.

15.4–18.8 mm;

calyx 8.8–11.8 mm, strigulose, tube 6.3–7.5 mm, lobes lanceolate-subulate, 2.5–4.3 mm;

corolla white or lilac-tinged, drying ochroleucous;

keel (9.8–)10–12.4 mm.

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

ascending to divaricately spreading or somewhat declined, set at angle to stipe, stramineous or brownish, straight or slightly incurved, inflated, scarcely bladdery, (10–)13–24(–32) × 6–12 mm, thinly fleshy, glabrous;

stipe (4–)5–12 mm.

= 22.

= 22.