Flora of North America species comparison

not disarticulating at each node.

basal or nearly so;

petiole (0.5–)1–2.5(–3) cm;

blade oblanceolate, (0.3–)0.5–1.5(–2) × 0.2–0.4(–0.5) cm, thinly floccose to sparsely tomentose.

blades oblanceolate to elliptic or round.

with involucres in small clusters 0.5–1 cm diam., greenish to reddish;

bracts 2, with laminar ones oblanceolate, (0.5–)0.8–1.5(–2) cm × (1–)2–4 mm, those at distal nodes becoming sessile, reduced and scalelike, linear-lanceolate, acicular, awns slightly curved, 0.5–1 mm.

bracts awned or awnless.

1, green, cylindric, 5-ribbed, 3–4.5 mm, finely corrugate, pubescent;

teeth 5, erect, unequal, with leaflike, narrowly lanceolate, 2–6 mm anterior tooth, others linear, 1–2 mm;

awn uncinate, 0.4–0.8(–1) mm.

cylindric, campanulate, or urceolate, not ventricose basally, 3-angled, 3-ribbed, 3-, 5-, or occasionally 6-toothed, without membranous or scarious margins;

awns equal, sometimes anterior one longest.

1, included to slightly exserted;

perianth yellow, cylindric, 1.5–2.5 mm, thinly pubescent abaxially;

tepals connate ca. 2/3 their length, monomorphic, oblong, acute, entire apically, mostly erect;

stamens 3 or 9, slightly exserted;

filaments distinct, 0.8–1 mm, glabrous;

anthers yellow, ovate, 0.2–0.3 mm.

1(–2);

perianth white to rose or yellow, thinly to densely pubescent;

stamens 3, 6, or 9;

filaments adnate faucially at or near top of floral tube.

brown, lenticular, 2.5–3 mm.

brown to black, lenticular or 3-gonous.