Flora of North America species comparison

erect, glabrous.

erect, glaucous, glabrous.

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.

mostly alternate, sometimes whorled or opposite at lowest 1–2 nodes proximally;

sessile or subsessile;

blade linear, (3–)4–12(–17) × 0.3–1 mm, base obtuse to acute or slightly cuneate, apex acuminate, surfaces glabrous.

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.

(rarely spikelike), densely cylindric, (0.6–)1–3.5(–4) × 1–1.3 cm;

peduncle 2–4 cm;

bracts deciduous, ovate to lanceolate-ovate.

0.4–1.5 mm, glabrous.

(0–)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.

usually pink to purple, rarely white, sepals pink, 5–8(–10) mm;

sepals narrowly ovate to linear-oblong or lanceolate, 0.9–1.5(–2.5) mm;

wings narrowly ovate to linear-oblong or narrowly oblanceolate, 1.5–3(–4) × 0.6–1 mm, apex acute to obtuse;

keel 5–8 mm, crest 2-parted, with 3 lobes on each side, each 2–4-lobed.

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

ellipsoid or subglobose-ovoid, 2.4–3.5 × 1.5–3 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.

1–2.2 mm, pubescent;

aril to 1.1 mm, not obviously lobed, to 1/4 length of seed.