Flora of North America species comparison

erect or ascending, (0–)1–12+ cm underground, villous.

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

(2–)3–12 cm;

stipules distinct, subterranean ones often fully amplexicaul but distinct, 7–15 mm, foliose at distal nodes;

leaflets (5–)7–13(–15), blades elliptic, oblong or lanceolate-elliptic, 10–30(–35) mm, pinnately veined, apex obtuse to rounded, surfaces sparsely villosulous or villous abaxially, glabrous adaxially.

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.

appearing subumbellate, loosely 5–11-flowered;

axis 1–5 cm in fruit;

bracts (1.5–)2.5–3.8 mm;

bracteoles 0.

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.

erect, 3–9.8 cm, usually longer than subtending leaf.

erect or incurved-ascending, 2–10 cm.

1.5–5 mm.

0.7–1.8 mm.

13–19 mm;

calyx campanulate to subcylindric, 7.5–8.8 mm, villosulous, tube 6.3–8 mm, lobes broadly triangular, 0.6–0.8 mm;

corolla yellowish with whitish margins, banner sometimes purple bordered white, keel 13.2–16 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.

green becoming brown, ± straight, ovoid, inflated, 15–21 × 5.5–8 mm, papery-membranous, black-pilose, hairs to 0.5 mm;

stipe 5–7 mm, pubescent.

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.

6–10.

(2 or)3–12.

= 16.