Flora of North America species comparison

erect, glabrous.

erect, sometimes laxly so or sprawling, glabrous or puberulent distally.

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.

whorled proximally, alternate distally;

sessile or subsessile;

blade linear to narrowly spatulate, sometimes scalelike proximally, 4–11 × 0.5–1 mm, base cuneate, apex acute, surfaces glabrous or puberulent, hairs glanduliform (as small glandlike projections less than 0.05 mm).

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.

loosely conic-cylindric to narrowly capitate, 0.7–4 × 0.6–0.9 cm;

peduncle usually 3–7 cm;

bracts persistent, triangular-ovate.

0.4–1.5 mm, glabrous.

1.5–2 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.

pink or greenish, keel sometimes yellowish distally, 3–4 mm;

sepals ovate, 1.1–1.5 mm;

wings ovate, oblong-ovate, or ovate-lanceolate, 3–4 × 1.3–2 mm, apex acute, short-mucronate, ciliolate on distal margin, hairs sometimes resembling minute, stipitate glands;

keel 2.8–3.8 mm, crest 2-parted, with 2 or 3 entire 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).

with strongly winged stipelike base, globose, 1.4–2.2 × 1.4–2.2 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 mm, short-pubescent;

aril 1.2 mm, lobes subequal to length of seed.