Flora of North America species comparison

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

prostrate to laxly erect, often glaucous, glabrous or 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.

sessile;

blade ovate, elliptic, or obovate, 4–20 × 2–12 mm, base cuneate, rounded, or nearly clasping, apex acute or rounded, 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, to 3.5(–5) × 1.5–3 cm;

rachis thorn-tipped;

peduncle 0.2–0.3 cm;

bracts deciduous, ovate, elliptic, or linear.

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

(3–)4–8(–9.5) mm, glabrous or 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, wings usually pink, keel distally yellow, (7.5–)9.5–13.5 mm;

sepals deciduous, elliptic to ovate, lower sepals mostly obovate, (2–)2.5–6 mm, pubescent;

wings obovate to elliptic-obovate, (6.5–)8–12.5 × (2.5–)3–5.5 mm, glabrous or sparsely pubescent;

keel (6–)7.5–11.2 mm, sac glabrous, beak oblong, with 1 or 2 prominent invaginations along abaxial side formed by sinuate excess tissue, (1.4–)2–4 × (0.6–)0.8–1.3 mm, glabrous.

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-ovoid to obovoid, 4.2–7.8 × 3.7–7 mm, base cuneate to rounded, margins with very narrow and even wing, pubescent or glabrous.

3.5–6 mm, densely pubescent;

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

3–4.4 mm, most densely pubescent apically, proximal 1/2 sparsely and unevenly pubescent or glabrous;

aril 1.3–2.6 mm, lobes 1/4–1/2 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.

= 36(or 38).