Flora of North America species comparison

erect, glabrous.

erect, appearing glabrous, but usually puberulent, at least proximally, hairs appressed (very rarely with a few sparse, incurved to spreading hairs).

alternate;

sessile or subsessile;

blade spatulate proximally to linear or narrowly elliptic distally, (5–)10–20(–40) × (0.5–)1–3(–5) mm, base acute or obtuse, apex acute to acuminate, surfaces glabrous.

alternate;

sessile or subsessile;

blade oblanceolate proximally to linear distally, 3–16 × 0.5–1(–1.5) mm, base acute, apex acute or obtuse, surfaces glabrous or sparsely pubescent.

capitate to densely cylindric, (0.5–)1–2(–4) × 0.5–1.4 cm;

peduncle 0.3–2.5(–3) cm;

bracts subpersistent to tardily deciduous, subulate.

densely cylindric, 0.5–4 × 0.4–0.7 cm;

peduncle 0.5–2.5 cm;

bracts persistent, linear-lanceolate.

0.4–1.5 mm, glabrous.

0.5(–1) mm, glabrous.

usually pink, purple, or reddish purple, rarely white, sometimes greenish tinged, sepals sometimes pink or white, 4–6 mm;

sepals oval, elliptic-ovate, or lanceolate, 1–3 mm;

wings ovate to broadly elliptic, (2.6–)4.5–6.3 × (1–)2.5–3.5 mm, apex obtuse to broadly rounded, sometimes minutely apiculate, rarely acute;

keel 2.5–3 mm, crest 2-parted, with 2–4 lobes on each side.

purple, dull reddish pink, or greenish, 2.4–3.4 mm;

sepals ovate, 0.5–0.8 mm;

wings elliptic to elliptic-lanceolate, 2–3 × 0.5–0.7 mm, apex acute to obtuse, sometimes minutely apiculate;

keel 2–3.2 mm, crest 2-parted, with 2 or 3 blunt lobes on each side.

usually with flattened, sterile base, cuneate-subglobose, 2.5–3 × 2–2.5 mm, margins not winged (sometimes with raised rim).

ovoid, ellipsoid, or subglobose, 1.5–2.4 × 1.1–1.8 mm, margins not winged.

1.3–1.7 mm, pubescent;

aril 1–1.3 mm, lobes usually (1/2–)2/3 to ± length of seed, rarely minute.

0.9–1.4 mm, pubescent;

aril 0.3–0.7 mm, lobes to 1/2 length of seed.

= 46.