Flora of North America species comparison

basal;

petiole 1–3(–6) cm;

blade oblanceolate, 0.5–2(–4) × 0.1–0.4(–1) cm, villous.

basal;

petiole (0.5–)1–3(–4) cm;

blade oblanceolate, (0.5–)1–5(–7) × (0.3–)0.4–0.7(–1) cm, villous.

cymose, dichotomously branched throughout, white to greenish or reddish;

bracts usually 2, similar to proximal leaf blades, typically with whorl of 3–5 ca. midstem, short-petiolate, becoming linear and aciculate at distal nodes, acerose, 0.5–2(–3) cm × 1–5(–10) mm, awns absent.

rather dense with secondary branches suppressed, grayish;

bracts 2, similar to leaf blades at proximal nodes only reduced, short-petiolate, becoming linear and aciculate at distal nodes, acerose, 0.5–7 cm × 2–7 mm, awns 0.5–1.2 mm.

congested in small leafy terminal clusters of 2–4 at nodes of dichotomies, greenish, cylindric, slightly ventricose basally, 3–5 mm, with conspicuous, purple, broad, membranous margins typically extending across sinuses, finely corrugated, hispid at least along ridges, otherwise sparsely pubescent;

teeth spreading, equal, (0.7–)1–1.5 mm, awns straight, 0.5–1 mm.

1, grayish, cylindric, often ventricose basally, 2–2.5(–3) mm, with distinct, white to pink or purple, scarious margins extending nearly full length of awn, corrugate, villous abaxially;

teeth spreading, equal, 0.5–1.5 mm;

awns uncinate with longer ones 2–3 mm and alternating with shorter (1–1.5 mm) ones.

exserted;

perianth white to rose, cylindric, 3.5–4(–4.5) mm, slightly pubescent abaxially;

tepals connate 2/3 their length, monomorphic, obovate, 2-lobed or denticulate apically, infrequently inner whorl entire;

stamens 9, slightly exserted;

filaments distinct, 3–4 mm, glabrous;

anthers pink to red, oblong, 0.5–0.6 mm.

exserted;

perianth bicolored with floral tube white and tepals white to rose, cylindric, 2–3.5 mm, pubescent abaxially;

tepals connate less than 1/4 their length, monomorphic, obovate to oblong, acute to truncate and erose apically;

stamens 9, slightly exserted;

filaments distinct, 2–3 mm, glabrous;

anthers cream to rose, ovate, 0.3–0.4 mm.

light brown, globose-lenticular, 3.5–4 mm.

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

= 40.