Flora of North America species comparison

basal or nearly so;

petiole 0.5–2(–3) cm;

blade round-ovate, (0.5–)0.8–1.5(–2) × (0.3–)0.5–1.5(–2) cm, thinly floccose to tomentose.

basal;

petiole 0.5–2(–3) cm;

blade oblanceolate, (0.5–)1–3(–4) × 0.1–0.7(–1.2) cm, thinly pubescent.

with involucres in small clusters 0.5–1 cm diam., green to tan or reddish;

bracts 2, linear to linear-lanceolate, acicular, 2–7 cm × 1–2.5 mm, awns slightly curved, 0.5–1 mm.

with involucres in small, open clusters 0.3–1 cm diam., greenish yellow to green or reddish green;

bracts 2, sessile, leaflike and similar to proximal leaf blades only reduced, linear-oblanceolate to elliptic, 0.3–1(–1.5) cm × 1.5–5(–8) mm, rapidly reduced and scalelike at distal nodes, linear, acicular, often acerose, 0.1–0.5 cm × (0.3–)0.5–3 mm, awns straight, 0.2–1 mm.

1, green to tan, cylindric, 3-angled but 3-ribbed, 3–4 mm, markedly transverse corrugate, glabrate;

teeth 3, equal, 2–4.5 mm;

awns uncinate, 0.6–1 mm.

3–10, rarely more, greenish yellow to reddish green, cylindric or narrowly to broadly campanulate, not ventricose,1.5–3 mm, faintly corrugate, without scarious or membranous margins, thinly pubescent with spreading hairs, longest hairs on ribs and at base;

teeth spreading, equal, 1–2.5 mm, or divergent, thickened basally, unequal, 1–2 mm or 2.5–5 mm with hyaline margins between teeth;

awns uncinate, 0.2–0.5 mm.

1, included to slightly exserted;

perianth white, cylindric, 2–2.5 mm, thinly pubescent abaxially;

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

stamens 6, slightly exserted;

filaments distinct, 0.8–1 mm, glabrous;

anthers cream, ovate, 0.4–0.5 mm.

exserted;

perianth yellow or sometimes white, cylindric, (1.7–)2–3 mm, pubescent;

tepals connate ca. 2/3 their length, essentially monomorphic, narrowly oblong to narrowly obovate, occasionally with outer lobes slightly broader and longer than inner ones, entire apically;

stamens 9, exserted;

filaments connate basally into 0.2–1 mm tube, (0.3–)0.5–2.5 mm, pilose-ciliate;

anthers cream to pale yellow, oblong, (0.2–)0.5–0.7 mm.

brown, lenticular, 2.5–3 mm.

brown, lenticular, 1.5–2.5 mm.

= 38.

= (38), 40, (42, 44, 46).