Flora of North America species comparison

basal;

petiole 0.5–2(–3.5) cm;

blade oblanceolate to narrowly oblong, 0.5–2.5(–4) × 0.2–0.6(–1.2) cm, thinly pubescent.

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.

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

bracts 2, sessile, usually leaflike, oblanceolate to elliptic, 0.5–1.5 cm × 1.5–7 mm, gradually reduced and becoming scalelike at distal nodes, linear, aciculate, acerose, 0.1–0.5 cm × 1–2 mm, awns straight, 0.4–1 mm.

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.

3–5, greenish or grayish to reddish, urceolate, slightly ventricose basally, 1.5–2 mm, corrugate, without scarious or membranous margins, pubescent;

teeth widely spreading to divergent or recurved, equal, 0.5–1.5 mm or 1–3 mm;

awns uncinate or straight, unequal, alternating 0.5–1.5 mm and 0.2–0.5 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.

slightly exserted;

perianth bicolored with floral tube greenish white and tepals white, cylindric, 2.5–3 mm, sparsely pubescent;

tepals connate 2/3 their length, slightly dimorphic, those of outer whorl oblong to oblong-ovate, 1.5 times longer than those of inner whorl, rounded, erose or rarely some entire to denticulate apically, those of inner whorl linear-oblanceolate, acute, entire or denticulate apically;

stamens 9, included;

filaments distinct, 2–2.5 mm, glabrous;

anthers white, ovate, 0.2–0.3 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.

brown, globose-lenticular, 2.5–3 mm.

2.5–3 mm.

= (40), 44, (46).