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 0.5–2 cm;

blade oblanceolate to narrowly elliptic or spatulate, (1–)1.5–3(–4) × 0.1–1 cm, 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.

green;

bracts 2, similar to proximal leaf blades only more reduced, 0.3–1(–1.5) cm × 1–2.5 mm, becoming sessile and scalelike at distal nodes, linear, acicular, awns 0.2–0.5 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.

1, green, 3–5 mm, not corrugate, thinly strigose;

teeth divergent, 0.4–1.2 mm;

awns uncinate, 0.2–0.5 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.

included;

perianth greenish white to white or pale yellowish white, cylindric, 2–4 mm;

tepals connate 3/4 their length, monomorphic, linear to narrowly oblanceolate, acute, entire apically;

stamens slightly exserted;

filaments distinct, 2–3.5 mm, glabrous;

anthers white to pale yellow, ovate, 0.3–0.4 mm.

brown, globose-lenticular, 3–3.5 mm.

dark brown, lenticular, 3–4 mm.

= ca. 38.