Flora of North America species comparison

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

usually erect to decumbent or procumbent, usually sparsely pubescent, rarely glabrate, hairs incurved.

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.

larger ones usually early deciduous;

sessile or petiolate, petiole to 1 mm;

blade linear, lanceolate, narrowly elliptic, obovate, or scalelike, 1–4(–15) × 0.5–1(–3.7) mm, base cuneate, apex acute, surfaces glabrous or sparsely pubescent, hairs incurved.

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, often also appearing axillary (from branches proximal to racemes of major branches with vegetative portions highly reduced), 2–10(–15) ×0.8–1.5 cm;

rachis not thorn-tipped;

peduncle 0–2 cm;

bracts persistent, ovate to lanceolate.

1–4.5 mm, pubescent.

(1.3–)1.6–3.6 mm, usually pubescent, rarely subglabrous.

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.

usually white or cream, often with purplish center stripe, rarely pink, 3–5 mm;

upper sepal persistent, others deciduous, ovate to elliptic or obovate, 1.4–3(–3.4) mm, pubescent;

wings obovate to elliptic, (2.5–)3–4.6 × (1.2–)1.5–3 mm, usually glabrous, rarely sparsely pubescent;

keel (2.2–)2.5–4 mm, sac incurved-puberulent in distal 1/2, beak bluntly rounded to oblong, (0.3–)0.4–1.1 × 0.2–0.5(–0.7) mm, pubescent.

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.

ovoid to broadly ellipsoid, 2.5–4(–4.5) × (2.1–)2.3–3.2(–3.4) mm, base rounded or subtruncate, margins with very narrow and even wing, usually pubescent, sometimes subglabrous proximally.

2.8–4.3 mm, pubescent;

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

2.3–3(–3.4) mm, usually evenly pubescent;

aril (0.8–)1–1.6 mm, lobes to 1/2 length of seed.

= 18.