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–)1–3 cm;

blade oblanceolate, (0.5–)1–5 × (0.3–)0.4–0.7(–1) cm, villous.

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.

rather dense with secondary branches suppressed, greenish to reddish;

bracts 2, similar to proximal leaf blades only reduced, short-petiolate, becoming narrowly elliptic to linear-lanceolate and aciculate at distal nodes, acerose, 0.5–5 cm × 2–7 mm, awns 0.5–1.2 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, greenish, cylindric, often ventricose basally, 1–3 mm, without scarious margins or if so then white to pink, thin, and restricted to basal portions of teeth, corrugate, villous abaxially;

teeth spreading, equal, 0.5–2 mm;

awns uncinate or straight with longer ones 2–3 mm and anterior one mostly 2.5–3 mm, these alternating with shorter 1–1.5(–1.7) mm ones.

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 to slightly exserted;

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

tepals connate less than 1/4 their length, monomorphic, oblong, truncate to 3-lobed and distinctly cuspidate apically;

stamens 9, slightly exserted;

filaments distinct, 2–3 mm, glabrous;

anthers cream to rose, narrowly oblong, 0.3–0.4 mm.

brown, globose-lenticular, 3–3.5 mm.

light brown, globose-lenticular, 2–3 mm.

= ca. 38.