Flora of North America species comparison

laxly erect, decumbent, or prostrate, pubescent to subglabrous, hairs incurved.

decumbent to erect, densely pubescent, hairs spreading.

sessile or subsessile;

blade ovate, elliptic, or obovate, 7–50(–60) × 3–20(–26) mm, base usually rounded to acute, sometimes cuneate, apex rounded to acute, surfaces pubescent, hairs incurved.

subsessile;

blade elliptic or obovate, 6–20(–26) × 3–10(–12) mm, base cuneate, apex acute or obtuse, surfaces pubescent, hairs spreading.

terminal or leaf-opposed, 1–4(–5) × 1.8–3 cm;

rachis not thorn-tipped;

peduncle 0–1 cm;

bracts early deciduous, linear to lanceolate.

terminal, sometimes leaf-opposed, 1–3.5 × 1.5–2.8 cm;

rachis weakly thorn-tipped (often not clearly visible when young);

peduncle 0–0.5 cm;

bracts semipersistent, lanceolate to linear.

(2.5–)3.5–8.5 mm, sparsely pubescent or glabrous.

3–7(–8.6) mm, pubescent.

usually pink, rarely white, keel distally yellow (fading white), (2.5–)9–14.5 mm, cleistogamous and semi-cleistogamous flowers mostly 2.5–5 mm, intergrading with chasmogamous flowers;

sepals deciduous, elliptic, 4–6.5 mm, pubescent or glabrous;

wings obovate, (7.5–)8–12 × 2.5–6 mm, glabrous or sparsely pubescent;

keel (7–)8–11 mm, sac glabrous (sometimes proximally ciliate), beak oblong, (1.2–)1.6–3 × 0.7–1 mm (mostly absent in cleistogamous flowers), usually notched or contorted abaxially, rarely subentire, pubescent.

pink and white, sepals pink or brownish pink, margins white, keel beak yellow to yellow-green, (7.5–)8.5–13(–14) mm;

sepals persistent, elliptic or ovate, (3–)3.5–6(–7) mm, glabrous or sparsely pubescent;

wings narrowly elliptic to obovate, (7.2–)8–11.5(–12.3) ×3.2–5.6 mm, glabrous or sparsely pubescent;

keel (6.5–)7.2–10.7 mm, sac spreading-pubescent in distal 1/2, sometimes also proximally, beak oblong, (1.6–)1.9–3.2 × (0.5–)0.7–1 mm, pubescent.

ellipsoid to ovoid, 7.3–10.5 × 4.5–7 mm, in cleistogamous and semi-cleistogamous flowers 4.5–8 mm, base obtuse, rounded, or subtruncate, margins with narrow, entire or slightly erose wing, glabrous, margins sometimes ciliolate.

ellipsoid, 4.8–8.5 × 4–5.7 mm, base obtuse or rounded, margins with very narrow wing, sparsely pubescent.

3.5–6 mm, densely pubescent;

aril 1.7–4 mm, less than 1/2 length of seed.

3.5–4.8 mm, pubescent;

aril 0.8–2.6 mm, lobes 0–1/2 length of seed.

or semi-cleistogamous flowers often present terminally, on much reduced scale-leaved lateral branches from proximal (or distal) leaf axils, or terminally on leafy branches that are often leaf-opposed.

= 18.

= 18.