Flora of North America species comparison

erect, glabrous.

erect, sparsely pubescent or glabrate, hairs minute, incurved.

alternate;

sessile or subsessile;

blade linear to subfiliform, 8–25 × 0.5–1 mm, base obtuse to cuneate, apex acute to acuminate, surfaces glabrous.

whorled at 1 or 2 nodes proximally, rarely more;

sessile or subsessile;

blade narrowly oblanceolate or spatulate proximally, to narrowly oblong or linear distally, 4–18(–25) × 1.5–2.5 mm proximally, 8–25 × 0.5–1.2(–2) mm distally, base cuneate, apex rounded to acute proximally, acute to acuminate distally, surfaces very sparsely pubescent or glabrate, hairs minute, incurved.

cylindric, 1.5–13 × 0.5–0.6 cm;

peduncle 0.5–1 cm;

bracts deciduous, narrowly lanceolate-ovate.

to nearly spikes, cylindric-conic, (1–)2–8.5(–12) × 0.4–0.8 cm, often interrupted proximally;

peduncle (1–)2–13 cm;

bracts deciduous, lanceolate.

0.8–1 mm, glabrous.

0.1–1 mm, pubescent to subglabrous.

usually purplish pink or lavender-pink, rarely white, 1.6–2.2 mm;

sepals ovate to narrowly lanceolate-ovate, 0.6–1 mm;

wings obovate or elliptic, 1.5–2 × 0.8–1 mm, apex obtuse to bluntly rounded;

keel 1.5–2 mm, crest 2-parted, with 2–3 lobes on each side.

white, sepals, including wings, often with greenish or purple longitudinal stripe, keel distally green or yellow, crest often purplish, 2–3.5(–4) mm;

sepals ovate to oblong, 1.3–1.8 mm, pubescent;

wings elliptic or ovate, 2.2–4 × 1.3–1.5(–2) mm, apex usually obtuse, rarely acute to bluntly rounded, pubescent;

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

oblong to ellipsoid, 1.4–2 × 0.7–1.1 mm, margins not winged.

ovoid, ellipsoid, or oblong, 1.5–3 × 1.3–1.6 mm, margins not winged.

1–1.2 mm, pubescent;

aril 0.1(–0.2) mm, lobes less than 1/8 length of seed.

2–2.5 mm, pubescent;

aril 0.8–1.5 mm, lobes to (1/5–)1/3–3/4 length of seed.

= 24, ca. 36, 52–54.