Flora of North America species comparison

decumbent to erect, usually pubescent, rarely glabrous, hairs spreading or incurved.

prostrate to laxly erect, often glaucous, glabrous or pubescent, hairs spreading.

subsessile to petiolate, petiole to 1(–1.5) mm;

blade elliptic to linear, lanceolate, ovate, obovate, or scalelike, (3–)4–41 × (0.5–)1–12(–18) mm, base rounded to cuneate, apex obtuse to rounded, surfaces pubescent or glabrous, hairs incurved or spreading.

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, usually leaf-opposed, often also from near base of plant, these usually with chasmogamous flowers, occasionally bearing reduced, beakless cleistogamous or semi-cleistogamous flowers, rarely with cleistogamous or semi-cleistogamous flowers throughout, 1–12(–15) × 0.3–1.5 cm;

rachis not thorn-tipped;

peduncle 0–1 cm;

bracts usually persistent, ovate, lanceolate, or elliptic.

terminal, to 3.5(–5) × 1.5–3 cm;

rachis thorn-tipped;

peduncle 0.2–0.3 cm;

bracts deciduous, ovate, elliptic, or linear.

1–4.5 mm, pubescent.

(3–)4–8(–9.5) mm, glabrous or pubescent.

usually pink to purple, rarely white, keel yellowish distally, wings pink or rose, (3.7–)4–7.4(–7.7) mm;

upper sepal persistent, other sepals deciduous, upper sepal ovate, 1.7–4.5(–5.2) mm, lower sepals lanceolate to obovate, (1.3–)1.6–3.5(–3.8) mm, pubescent or glabrous;

wings obovate to oblong-obovate, 3–6.4(–7.2) × (1.2–)1.4–3.2 mm, glabrous or pubescent;

keel (2.7–)3.1–6.2 mm, sac glabrous or with scattered hairs, beak linear (or bluntly rounded), (0–)0.5–2 × (0–)0.2–0.6 mm, glabrous or 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, oblong, slightly ovoid, or obovoid, 3.3–6(–6.8) × 2–4 mm, base rounded to subtruncate, often oblique, margins with narrow wing or not winged, usually pubescent, rarely subglabrous.

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.

2.8–4.3 mm, pubescent;

aril 0.7–2.5 mm, lobes to 3/4 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.

= 36(or 38).