Flora of North America species comparison

sprawling to erect, densely pubescent to glabrate, hairs spreading and short.

prostrate to erect, sometimes glaucous, at least when young, glabrous or pubescent, hairs spreading to slightly incurved.

sessile or subsessile;

blade oblanceolate, narrowly obovate, or narrowly elliptic, 3–25 × 1–5 mm, base long-cuneate, apex rounded or acute, surfaces usually densely pubescent, rarely subglabrous, hairs spreading and short.

subsessile to petiolate, petiole to 1(–2) mm;

blade obovate or elliptic, 4–31 × 0.8–11 mm, base cuneate, apex rounded or acute, surfaces densely to sparsely pubescent or subglabrous, hairs spreading to slightly incurved.

terminal, sometimes appearing axillary if poorly developed, sometimes aggregated into pseudopanicles or reduced and appearing fasciculate, 0.5–2.5 ×0.6–2 cm;

rachis thorn-tipped;

peduncle 0–0.2(–0.5) cm, often poorly developed;

bracts deciduous, lanceolate.

terminal, sometimes reduced to (1 or)2–few flowers, 3–12.5 cm;

rachis thorn-tipped;

peduncle 0.1–0.5 cm;

bracts usually deciduous, rarely persistent, elliptic, ovate, or lanceolate.

1.5–4(–5.8) mm, usually shorter than flowers, pubescent, sometimes sparsely so.

(1.5–)3.5–10(–20.5) mm, glabrous or pubescent.

cream to yellowish green, wings cream to greenish, upper petals often purple-tipped, distal keel often dark yellow to green, (3–)3.5–5(–5.3) mm;

sepals deciduous, ovate to elliptic, 1.6–3.5 mm, spreading-pubescent, margins usually ciliate;

wings obovate, 3–5 × 2–3 mm, glabrous or sparsely pubescent;

keel 2.7–3.8 mm, sac glabrous, beak absent or obscure and bluntly rounded, to 0.7 × 0.5 mm, glabrous;

stamens rarely 9.

pink to rose, wings (and other sepals) sometimes light green, distal keel yellow or green, (6–)8–12(–13) mm;

sepals deciduous, ovate, elliptic, or lanceolate, 2–7.2 mm, glabrous or pubescent;

wings obovate to elliptic-obovate, (5–)7–11.5(–12.2) × (2.3–)3–5.2(–5.9) mm, glabrous or pubescent;

keel (5.4–)6.2–10.5 mm, sac glabrous, beak oblong, 1–3 × 0.9–1.5 mm, glabrous.

ellipsoid or slightly obovoid, (3–)4–6 × 2.5–4 mm, base rounded or, sometimes, cuneate, margins with very narrow and even wing, glabrous.

ellipsoid to obovoid, 4.3–8.8(–10) × 3.7–7.3 mm, base cuneate to rounded, margins with narrow, entire or slightly erose wing, glabrous or pubescent.

3.2–4.2 mm, pubescent;

aril 1–1.7 mm, lobes to 1/3 length of seed.

3.3–4.9 mm, ± evenly and moderately densely pubescent, occasionally with glabrate patches;

aril 1.2–3.1 mm, lobes to 1/2 length of seed.

= 18.

= 18, 36.