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 cm;

blade oblanceolate, 1–3 × 0.4–0.8 cm, thinly pubescent.

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.

with involucres in dense clusters 2–4 cm diam., greenish or reddish to purple;

bracts 2–3 at proximal node, usually leaflike, often with whorl of sessile bracts about midstem, elliptic, 0.5–1.5 cm × 2–6 mm, becoming gradually lanceolate to elliptic, 0.2–1 cm × 1.5–5 mm, at distal nodes scalelike, linear and aciculate, acerose, awns straight, 1–3 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.

3–10 or more, reddish to purplish, urceolate, slightly ventricose basally, 3.5–4 mm, without scarious or membranous margins, slightly corrugate, thinly pubescent with slender, curly hairs;

teeth erect to spreading, unequal, 1–2 mm;

awns uncinate, 0.5–1 mm with longer anterior one mostly 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.

exserted;

perianth bicolored with floral tube white to yellow and tepals red, maroon, or dark purple, cylindric, 4–5 mm, glabrous or with few scattered hairs along midrib ca. midlength;

tepals erect, connate 1/2 their length, dimorphic, obovate, those of outer whorl slightly longer than inner whorl, entire, rounded apically, those of inner whorl fimbriate and truncate or somewhat 2-lobed;

stamens 9, exserted;

filaments distinct, 4–5 mm, glabrous;

anthers pink to red or maroon, oblong, 0.9–1 mm.

brown, globose-lenticular, 3–3.5 mm.

brown, globose-lenticular, 3–3.5 mm.

= ca. 38.

= 38, 40, (48).