Flora of North America species comparison

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

obscured by stipules.

(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.

reduced to phyllodia, 1–13(–17) cm;

stipules conspicuous, usually connate-sheathing, 2–8 mm, white-membranous;

phyllodia linear-oblanceolate proximally, narrowly linear distally, 1–3 mm wide, apex very acute and subspinulose distally, surfaces strigose.

(15–)20–55(–65)-flowered;

axis (3–)5–20(–24) cm in fruit;

bracts 2–6 mm;

bracteoles 0.

loosely 7–23-flowered, in bud resembling grass spikelets;

axis 4.5–24 cm in fruit;

bracts 2–4.5 mm;

bracteoles 0.

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

erect, slender, wiry, 2–9(–11) cm.

(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.

6.2–8.5 mm;

calyx 4.5–8.5 mm, strigose, tube 2–3.5 mm, lobes rigid-spreading and subulate-aristiform, 2.5–5.2 mm;

corolla pink-purple, banner striate;

banner recurved through 90°;

keel 6–6.6 mm.

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

erect or ascending, green, often with purple or red spots, becoming stramineous, curved, obliquely lanceoloid or oblong, laterally compressed, 7–12 × 1.7–3 mm, stiffly papery, glabrous or strigose;

sessile.

4–8.

= 22.