Flora of North America species comparison

ascending or decumbent, 1–9 cm underground, sparsely strigulose.

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

(2–)3.5–18 cm;

stipules distinct, 3–10 mm, submembranous, glabrous abaxially; petiolate or subsessile;

leaflets (11–)15–33, blades oblanceolate, oblong-oblanceolate, obovate, suborbiculate, or broadly oval to linear-elliptic, (2–)3–24 mm, apex obtuse, acute, subacute, or truncate-emarginate, sometimes apiculate, surfaces pubescent abaxially, glabrous or glabrescent 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.

(5–)6–25(–35)-flowered, flowers ascending or slightly arched;

axis 1–7(–14) cm in fruit;

bracts 2.5–7.5 mm;

bracteoles 0–2.

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.

ascending to spreading, (1.5–)2–16 cm.

erect or incurved-ascending, 2–10 cm.

2–7.5 mm.

0.7–1.8 mm.

(16–)16.5–25(–27) mm;

calyx usually broadly or deeply campanulate or cylindro-campanulate, rarely cylindric, (6.6–)7.7–14 mm, densely strigulose, pilosulous, ascending-pilose, or villosulous-tomentulose, tube (5.2–)5.6–9.7 mm, lobes subulate or triangular-subulate, (1.3–)1.7–4.2(–5.8) mm;

corolla pink-purple, red-purple, white, whitish (faintly lilac-tinged), lilac, ochroleucous, or suffused pinkish lilac;

keel (10.7–)12–20.7 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, often red-mottled or suffused with red on adaxial surface, becoming brown or blackish, straight, globose, subglobose, broadly and plumply oblong-ellipsoid, oblong-ovoid, or oblong-obovoid, ± obcompressed, 15–40 × 12–27 mm, fleshy becoming alveolate-spongy or pithy, wrinkled on drying, mesocarp at least 1.2 mm thick, glabrous.

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.

34–77.

(2 or)3–12.