Flora of North America species comparison

erect, glabrous.

usually erect or decumbent, rarely prostrate, glabrous.

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 least proximally, to alternate distally;

sessile or subsessile, rarely with narrowed petiolelike base to 1 mm;

blade linear, elliptic, lanceolate, or obovate, 3–25 × 1–5 mm, base cuneate, margins sometimes erose, appearing toothed, apex often acute, sometimes obtuse or rounded proximally, surfaces glabrous.

cylindric, 1.5–13 × 0.5–0.6 cm;

peduncle 0.5–1 cm;

bracts deciduous, narrowly lanceolate-ovate.

narrowly cylindric, 3–12(–15) × 0.4–0.8 cm;

peduncle to 9 cm (elongate);

bracts deciduous, lanceolate-ovate.

0.8–1 mm, glabrous.

to 0.5 mm (to 1 mm in fruit), glabrous.

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 or greenish white, 2.5–3.2 mm;

sepals ovate to elliptic, 1–1.3 mm;

wings suborbiculate, broadly elliptic, or obovate, 2–3 × 1.5–2.5 mm, apex obtuse to bluntly rounded;

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

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

subglobose to broadly ellipsoid, 1.7–4 × (1.2–)2–3 mm, margins not winged.

1–1.2 mm, pubescent;

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

1–2.5 mm, pubescent;

aril 0.5–1.5 mm, lobes 1/3–2/3 length of seed.

= ca. 28, 96.