Flora of North America species comparison

basal;

petiole (0.5–)1–3(–4) cm;

blade oblanceolate, (0.5–)1–5(–7) × (0.3–)0.4–0.7(–1) cm, villous.

basal;

petiole 0.3–1(–1.5) cm;

blade oblanceolate, (0.5–)1–3(–4) × (0.2–)0.4–1(–1.2) cm, thinly pubescent.

rather dense with secondary branches suppressed, grayish;

bracts 2, similar to leaf blades at proximal nodes only reduced, short-petiolate, becoming linear and aciculate at distal nodes, acerose, 0.5–7 cm × 2–7 mm, awns 0.5–1.2 mm.

with involucres in open clusters 2–6 cm diam., greenish or reddish;

bracts 2–3 at proximal node, usually leaflike, often with whorl of sessile bracts about midstem, oblanceolate to elliptic, 0.5–1.5 cm × 1–4 mm, gradually becoming reduced, linear-lanceolate, 0.4–1.2(–1.5) cm × 1.5–5 mm, at distal nodes scalelike, linear and aciculate, acerose, awns straight, 1–3 mm.

1, grayish, cylindric, often ventricose basally, 2–2.5(–3) mm, with distinct, white to pink or purple, scarious margins extending nearly full length of awn, corrugate, villous abaxially;

teeth spreading, equal, 0.5–1.5 mm;

awns uncinate with longer ones 2–3 mm and alternating with shorter (1–1.5 mm) ones.

3–10+, greenish or reddish, urceolate, strongly ventricose basally, 4–4.5 mm, without scarious or membranous margins, corrugate, thinly pubescent;

teeth spreading, unequal, 1–3 mm;

awns straight or uncinate with longer anterior one straight, mostly 2 mm, others uncinate, 0.5–1 mm.

exserted;

perianth bicolored with floral tube white and tepals white to rose, cylindric, 2–3.5 mm, pubescent abaxially;

tepals connate less than 1/4 their length, monomorphic, obovate to oblong, acute to truncate and erose apically;

stamens 9, slightly exserted;

filaments distinct, 2–3 mm, glabrous;

anthers cream to rose, ovate, 0.3–0.4 mm.

exserted;

perianth bicolored with floral tube white to greenish yellow and tepals red to maroon, cylindric, 4–4.5 mm, sparsely pubescent;

tepals connate 1/2 their length, dimorphic, oblong, those of outer whorl spreading and recurved, slightly longer than those of inner whorl, broadly obcordate, slightly erose or at least wavy and rounded apically, those of inner whorl erect, narrower, fimbriate and truncate or somewhat 2-lobed apically, erect;

stamens 9, exserted;

filaments distinct, 3.5–4 mm, glabrous;

anthers pink to red or maroon, oblong, 1–1.3 mm.

dark brown, globose-lenticular, 2–2.5 mm.

brown, globose-lenticular, 3–3.5 mm.

= 40, 42, 44.