Flora of North America species comparison

several, simple proximal to inflorescence, 30–80 cm, puberulent, becoming subglabrous near base.

several, erect, branched distally, stout, 40–100 cm.

withering proximally, in whorls of 4, ± sessile to short-petiolate, largest in mid-stem region;

blade lanceolate to ovate-lanceolate, 3–10 cm × 4–40 mm, apex acuminate, puberulent on both surfaces, sparsely so adaxially.

basal blade oblanceolate, spatulate, 5–10 cm × 10–25(–30) mm, margins entire, apex acute, apiculate, with tuft of white hairs;

cauline in 5–10 pairs, sessile, reduced distally, blade with both surfaces obscured by dense, silky, grayish-white tomentum.

paniculate, open, bracteate, bracteolate, branches elongate, puberulent;

bracts and bracteoles linear-lanceolate, 2–15 mm.

with 1–several dichotomies, several-flowered, open, bracteate;

branches ascending, elongate;

bracts leaflike, 10–20 mm.

straight, often with 1 or 2 pairs of bracteoles, slender, 1/2–3 times calyx, glabrous or scabrous-puberulous.

straight, stout, to 10 cm.

calyx obscurely 10-veined, broadly campanulate, becoming obtriangular in fruit, 7–11 × 6–10 mm, herbaceous, margins dentate, very narrow, membranous, sparsely puberulent, lobes broadly triangular, 2–3 mm;

corolla white, ca. 2 times longer than calyx, limb obtriangular, narrowed into claw, divided ca. 1/2 its length into 4–12 lobes, appendages absent;

stamens equaling petals;

styles 3, longer than petals.

ca. 35 mm;

calyx thickly 10-veined, obovate, ca. 15 × 10 mm in fruit, margins dentate with 5 narrowly lanceolate lobes ca. 1/4 length of tube, tomentose;

corolla rich magenta-pink, sometimes white, clawed, claw equaling calyx, limb spreading horizontally, broadly obovate, shallowly 2-lobed, appendages 2, narrow, 2–4 mm;

stamens equaling claw;

stigmas 5, equaling claw.

globose, opening by 3 broadly triangular teeth;

carpophore 2–3 mm.

equaling to tightly enclosed within calyx, obovate-elliptic, ca. 14 mm, opening by 5 spreading, lanceolate teeth;

carpophore ca. 2 mm.

dark brown, reniform, ca. 1 mm, papillate.

grayish brown, reniform-rotund, plump, 1–1.5 mm, coarsely verrucate.

= (34), 48.

= 24.