Flora of North America species comparison

basal;

petiole 0.5–2 cm;

blade oblanceolate to spatulate, 0.5–1.5(–2) × 0.2–0.6 cm, thinly pubescent.

basal;

petiole 1–4 cm;

blade oblanceolate, (0.5–)1–4(–5) × (0.2–)0.3–0.6 cm, villous.

with involucres in small, open clusters 0.5–1.5 cm diam., greenish to grayish;

bracts 2, without whorl of sessile bracts about midstem, usually leaflike, oblanceolate to elliptic, 0.5–1.5 cm × 1.5–5 mm, gradually reduced and becoming scalelike at distal nodes, linear, aciculate, acerose, 0.3–0.8 cm × 1–2 mm, awns straight, 0.5–1.5 mm.

rather dense with secondary branches suppressed, grayish to reddish;

bracts 2, similar to proximal leaf blades only reduced, short-petiolate, becoming linear and aciculate at distal nodes, acerose, 1–4 cm × 2–8(–10) mm, awns absent.

3–10+, grayish to reddish, urceolate, slightly ventricose basally, 2–2.5(–3) mm, slightly corrugate, without scarious or membranous margins, densely pubescent;

teeth spreading, unequal, 1–2 mm;

awns straight or uncinate, unequal, with longer anterior one straight, mostly 1.5–2.5 mm, others uncinate, 0.3–0.6 mm.

1, reddish, cylindric, not ventricose, 1.5–2(–2.5) mm, without scarious margins or if so then pinkish, thin, and restricted to basal portion of teeth, not corrugate, villous abaxially;

teeth spreading, equal, 0.5–1.5(–2) mm;

awns uncinate with longer ones 1.5–2.5 mm and anterior one mostly 2–2.5 mm, these alternating with shorter 1–1.5 mm ones.

exserted;

perianth bicolored with floral tube yellow and tepals yellow or white, cylindric, 3.5–4 mm, sparsely pubescent;

tepals connate 1/2 their length, dimorphic, obovate, those of outer whorl white, obovate to nearly orbiculate, 3–4 times longer than those of inner whorl, , truncate to slightly 2-lobed apically, those of inner lobes erect, yellow, broadly obovate, truncate and erose apically;

stamens 9, included;

filaments distinct, 1–1.5 mm, glabrous;

anthers yellow to golden, oblong, 0.5–0.6 mm.

slightly exserted;

perianth bicolored with floral tube white and tepals white to rose, campanulate, 2–3 mm, pubescent abaxially;

tepals connate 1/3 their length, monomorphic, oblong, usually rounded and erose apically;

stamens 3 or 6–9, slightly exserted;

filaments distinct, 2–2.5 mm, glabrous;

anthers cream to rose, ovate, 0.2–0.3 mm.

brown, globose-lenticular, 3–3.5 mm.

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

= (36), 40, (44).

= 38, 40, (42, 44, 46).