Flora of North America species comparison

erect, glabrous.

erect, glabrous or sparsely pubescent distally, hairs incurved.

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 petiolate, petiole to 1 mm;

blade narrowly spatulate proximally to linear distally, (6–)10–20(–25) × (0.5–)1–2(–2.5) mm, base cuneate or acute, apex acute, 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.

capitate, (0.5–)1–3.5 × 0.6–1.1 cm;

peduncle 0.2–2 cm;

bracts usually deciduous, infrequently a few persistent, scattered, lanceolate-ovate.

0.4–1.5 mm, glabrous.

1.5–3.5 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 purple, 4–5.7 mm;

sepals elliptic to ovate-lanceolate, 0.8–1.8 mm;

wings ovate, elliptic, or obovate, 2.5–4.5(–5.2) × 1.1–3(–3.6) mm, apex acute to obtuse, often minutely apiculate;

keel 2.3–3.5(–4) mm, crest 2-parted, with2–4 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).

subglobose or ellipsoid, 1.5–2.3 × 1–2 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.

0.9–1.2 mm, pubescent;

aril 0.4 mm, lobes nearly vestigial to 1/3 length of seed.

= 34.