Flora of North America species comparison

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

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

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.

terminal, to 3.5(–5) × 1.5–3 cm;

rachis thorn-tipped;

peduncle 0.2–0.3 cm;

bracts deciduous, ovate, elliptic, or linear.

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.

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

1–4.5 mm, 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.

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.

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.

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.

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.

2.8–4.3 mm, pubescent;

aril 0.7–2.5 mm, lobes to 3/4 length of seed.

= 36(or 38).