Flora of North America species comparison

basal;

petiole 0.5–2 cm;

blade (0.3–)0.5–1.5(–2) × (3–)5–10(–12) mm, thinly pubescent adaxially, more densely so to tomentose abaxially.

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.

greenish to reddish, mostly flat-topped and open to dense;

bracts 3, whorled, short-petiolate, linear-lanceolate to lanceolate, acerose, 0.5–1.5 cm × 3–8(–10) mm, awns straight, 1–3.5 mm.

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.

usually congested in small terminal clusters of 1–3 at node of dichotomies, (4–)5-ribbed, weakly 3-angled, 2–2.5 mm, not corrugate, densely canescent;

teeth (4–)5, essentially erect with longer, prominent, and thickened anterior one 2–4 mm, with straight awn 1–2.5 mm, remaining teeth smaller, 0.5–1 mm, with straight awns 0.3–0.8 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.

1, exserted;

perianth, cylindric, 2.5–3.5 mm;

tepals connate 1/2–2/3 their length, dimorphic, entire, those of outer whorl spreading, broadly obovate and rounded apically, those of inner whorl erect, narrowly oblanceolate, 1/2 length of outer ones, acute apically;

stamens slightly exserted;

filaments 2.5–3 mm, glabrous;

anthers yellowish, oblong, 0.5–0.7 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.

2.5–3 mm.

brown, lenticular, 2.5–3 mm.

= (40), 44, (46).

= 38.