Flora of North America species comparison

basal;

petiole 1–2 cm;

blade narrowly oblanceolate, 0.5–1.5 × 0.2–0.35(–0.5) 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 clusters 0.5–1 cm diam., greenish;

bracts 2, sessile, unequal, 1 laminar and oblanceolate, 0.3–1 cm × 1–3 mm, awnless, this opposite linear, acicular, greatly reduced, 0.1–0.2 cm × 0.3–0.6 mm bract terminated by short, straight awn 0.6–1 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.

1, greenish, campanulate, 3-ribbed, 0.8–2 mm, faintly corrugate, pubescent;

teeth 3, equal, 1.8–2 mm;

awns uncinate, 0.6–1 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.

1, included to slightly exserted;

perianth yellow, cylindric, 1.5–1.8 mm, densely pubescent abaxially;

tepals connate ca. 1/2 their length, monomorphic, narrowly oblanceolate, obtuse to truncate, entire apically, slightly spreading;

stamens 9, slightly exserted;

filaments distinct, 0.5–0.8 mm, glabrous;

anthers reddish, ovate, 0.2–0.3 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.

dark brown, lenticular, 2–2.2 mm.

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

= (76, 78), 80, (84).

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