Flora of North America species comparison

erect or ascending, fistulose, pilose-tomentulose or white-lanate, rarely white-tomentulose.

obscured by stipules.

3–13(–15) cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, 3–12 mm, papery-membranous becoming scarious; mostly sessile;

leaflets (23–)27–41, blades narrowly oblong to oblong, oblong-elliptic, or linear-lanceolate, (2–)5–30 mm, apex obtuse or emarginate and apiculate, surfaces pilose-tomentulose.

3.5–11.5 cm;

stipules distinct, 3–11 mm, papery-membranous;

leaflets (7–)11–19, blades obovate, obovate-cuneate, rhombic, or broadly oblanceolate, 4–13 mm, apex subacute, obtuse and apiculate, or obtuse, surfaces pilose abaxially, glabrous adaxially.

many-flowered, flowers declined and retrorsely imbricate in spikelike heads, 20–70(–90) × 18–23 mm;

axis 2.5–8(–9.5) cm in fruit;

bracts (1.2–)1.6–4 mm;

bracteoles 0.

10–30-flowered, flowers in compact cluster, ascending to spreading becoming declined proximally;

axis not elongating in fruit;

bracts 3–8.5 mm;

bracteoles 0–2.

erect or incurved-ascending, 2–10 cm.

scapiform, incurved-ascending, 4.5–15(–20) cm.

0.7–1.8 mm.

0.4–1 mm.

7–10 mm;

calyx ovoid-campanulate, 5.4–7.8 mm, villosulous, tube 3.7–5.2 mm, lobes ± subulate, 1.2–3 mm;

corolla greenish white or cream;

keel 7.1–9.1 mm.

9.5–11.4 mm;

calyx campanulate, 5.9–8.2 mm, sparsely hirsute, tube 3.4–5.2 mm, lobes lanceolate-linear to setaceous, 1.9–3 mm;

corolla dull reddish purple, keel maculate;

banner recurved through 45°;

keel 7.9–9.1 mm, apex blunt.

deflexed or declined, green becoming stramineous or brownish, ovoid-lenticular, slightly inflated, somewhat compressed laterally, 6–11 × 3.5–6 mm, thin becoming papery, somewhat lustrous, glabrous or sparsely strigulose;

sessile.

in oblong or globose, headlike clusters, spreading and ascending, green or purple-tinged becoming stramineous or brownish, plumply ovoid or subglobose, terete or somewhat laterally compressed, 5–7 × 4–4.5 mm, thinly fleshy becoming stiffly papery, sparsely long-hirsute.

(2 or)3–12.

8–12.