Flora of North America species comparison

erect, glabrous.

usually erect, rarely somewhat sprawling, 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.

usually alternate, sometimes subopposite or opposite when leaves scalelike proximally (less than 1 mm);

sessile or subsessile, sometimes with narrow petiolelike region to2 mm;

blade spatulate to obovate or, sometimes, scalelike proximally, linear-oblong or elliptic to oblanceolate distally, (8–)15–30(–40) × 2–6(–8) mm, base acute or cuneate, apex obtuse to rounded or, sometimes, acute proximally to mostly acute distally, 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.

loosely cylindric, open, elongate, (2–)5–10(–25) × 0.8–1.4 cm;

peduncle 1–2 cm;

bracts deciduous, ovate to oblong-ovate.

0.4–1.5 mm, glabrous.

1–4 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 pale purple, rarely whitish, outer sepals sometimes with pink or white margins, 4–6 mm;

sepals ovate, 1.3–2.5 mm;

wings elliptic or obovate, 3–6 × 1.6–2.7 mm, apex obtuse to bluntly rounded;

keel (2–)3–5 mm, crest 2-parted, with 2 or 3 divided 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).

broadly ellipsoid or globose-ovoid, 2–4 × 2–3 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.

1.8–3 mm, usually densely short-pubescent to subglabrous;

aril 0.8–2 mm, lobes 1/3–3/4 length of seed.

flowers present in racemes usually below, rarely just above, soil surface, sometimes in proximal leaf axils later in season.

= 56.