Flora of North America species comparison

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

usually erect, usually stiff, sometimes lax or sprawling, usually glaucous, especially proximally, glabrous.

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.

early deciduous; usually sessile, rarely subsessile;

blade scalelike, linear-subulate, lanceolate, or elliptic, 2(–3) × 0.5–1 mm, base and apex narrowly acute, surfaces pubescent, hairs incurved.

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, often also appearing axillary (from branches proximal to racemes of major branches with vegetative portions highly reduced), 2–10(–15) × 0.8–1.9 cm;

rachis not thorn-tipped;

peduncle to 2 cm, sometimes vestigial, especially on reduced axillary racemes;

bracts mostly deciduous, rarely persistent, lanceolate, narrowly ovate, or linear.

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

1.5–3.2(–3.6) mm, glabrous.

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, keel green to yellow distally, (3–)3.4–5 mm;

upper sepal persistent, others deciduous, ovate to elliptic, lower sepals ovate or elliptic to narrowly obovate, 1.5–2.8 mm, glabrous, margins sparsely ciliate proximally;

wings obovate, (2.7–)3.5–4.7 × (1.5–)1.8–2.8 mm, glabrous, margins sometimes sparsely ciliate proximally;

keel (2.5–)2.7–3.5 mm, sac incurved-puberulent in distal 1/2, beak bluntly rounded, 0.3–0.8 × 0.3–0.6 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.

obovoid, usually narrowly so, (2.6–)3.3–4.4 × 1.8–2.6 mm, base cuneate, margins with very narrow and even wing, glabrous or sparsely pubescent apically.

3.5–6 mm, densely pubescent;

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

2.3–2.9 mm, pubescent, usually more sparsely pubescent to often subglabrous in distal 1/5–1/2 (sometimes evenly pubescent throughout);

aril 0.6–1.1 mm, lobes to 1/3 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 (36).