Flora of North America species comparison

basal;

petiole 0.5–2 cm;

blade oblanceolate, 0.5–1.5(–2) × 0.2–0.8 cm, thinly pubescent.

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

bracts 2, sessile, 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, 0.4–1.2 cm × 1–2(–3) mm, awns straight, 1.5–4 mm.

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

teeth widely spreading to divergent, unequal, 0.3–0.5 or 3–6 mm;

awns straight or uncinate, unequal, with longer anterior one straight, 2.5–5.5 mm, others spreading, uncinate, 0.3–0.5 mm.

included or only slightly exserted;

perianth bicolored with floral tube greenish white and tepals white, cylindric, 2–3 mm, sparsely pubescent;

tepals connate 2/3 their length, dimorphic, linear-oblong, those of outer whorl spreading, narrowly oblong, 1.5 times longer than those of inner whorl, rounded but with minute cusp or 3 teeth apically, those of inner whorl erect to slightly spreading, acute, entire apically;

stamens 3, included;

filaments distinct, 1–2 mm, glabrous;

anthers white, ovate, 0.4–0.5 mm.

brown, globose-lenticular, 2–3 mm.

= (78), 80, (82).