Flora of North America species comparison

erect to spreading or ascending, sparsely hirsute-hirsutulous.

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

2–8 cm;

stipules (2–)2.5–7 mm, papery-scarious proximally, herbaceous distally;

leaflet blades oblong-ovate, oblong-obovate, or obovate-cuneate, (3–)5–15 mm, apex retuse, surfaces hirsute-hirsutulous 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.

3–10-flowered;

axis 0.4–1 cm in fruit;

bracts 0.5–1.1 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 or incurved-ascending, (3–)4–8.5 cm.

erect or incurved-ascending, 2–10 cm.

0.5–1.4 mm.

0.7–1.8 mm.

4.2–5.2 mm;

calyx 1.9–2.7 mm, white pilosulous, tube 1.1–1.5 mm, lobes subulate, 0.7–1.2 mm;

corolla keel 4.3–5 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, usually with purple spots, becoming brownish, 5.5–9 × 2.5–5.5 mm, stiffly papery, glabrous;

gynophore 0.1–0.5 mm.

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.

(2 or)3–12.