Flora of North America species comparison

basal;

petiole 0.5–2 cm;

blade oblanceolate, 0.5–2.5 × 0.3–0.8 cm, thinly pubescent.

basal;

petiole 1–3(–4) cm;

blade oblong to oblong-ovate, 0.5–2(–3) × 0.3–0.5(–0.7) cm, thinly pubescent adaxially, usually densely tomentose adaxially.

with involucres in dense clusters 1–2 cm diam., yellowish green;

bracts 2, without whorl of sessile bracts about midstem, usually leaflike, oblanceolate, 0.5–1.5 cm × 1.5–3 mm, gradually reduced and becoming scalelike at distal nodes, linear, aciculate, acerose, 0.3–0.8 cm × 1–2 mm, awns straight, 1–2.5 mm.

mostly flat-topped and openly branched, usually reddish;

bracts soon deciduous, 2, occasionally leaflike at proximal nodes and similar to proximal leaf blades only more reduced, short-petiolate, ovate, 0.3–0.4 cm × 2–3 mm, otherwise sessile, linear and acicular, often acerose, 0.1–0.3 cm × 0.7–1 mm, awns straight, 0.5–1 mm.

3–10+, yellowish green, urceolate, slightly ventricose basally, 3–4.5 mm, slightly corrugate, without scarious or membranous margins, thinly pubescent;

teeth spreading, unequal, 1–3 mm;

awns straight or uncinate with longer anterior one straight or slightly curved, mostly 2 mm, others uncinate, 0.5–1.5 mm.

in congested clusters with 1 at node of dichotomies, reddish, cylindric, not ventricose, 3–4 mm, not corrugate, without scarious or membranous margins, thinly pubescent;

teeth spreading, unequal, 0.7–1.5 mm with longer of 3 longest ones more erect than 3 other shorter and less-prominent ones, awns uncinate, 0.5–1 mm.

exserted;

perianth bicolored with floral tube greenish white to white and the lobes white to pinkish, cylindric, 5–6 mm, sparsely pubescent;

tepals connate 2/3 their length, dimorphic, obovate, those of outer whorl erect, slightly longer than those of inner whorl, 2-lobed apically, those of inner whorl erect, 2-lobed, erose apically;

stamens 9, included;

filaments distinct, 5–5.5 mm, glabrous;

anthers yellow to golden, oblong, 1–1.2 mm.

long-exserted;

perianth rose to red, infrequently with white lobes, cylindric, 4.5–6 mm, pubescent;

tepals connate ca. 1/2 their length, dimorphic or sometimes monomorphic, narrowly oblanceolate, apex rounded, those of outer whorl slightly broader and occasionally longer than those of inner whorl;

stamens 9, mostly included;

filaments distinct, 4–6 mm, glabrous;

anthers pink to red, ovate to oblong, 0.5–0.6 mm.

brown, globose-lenticular, 3–3.5 mm.

brown, lenticular, 3–4 mm.

= ca. 38.

= 38.