Flora of North America species comparison

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

erect, few-branched, 50–100 cm, hispid.

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.

rounded into tightly sessile base;

blade lanceolate to ovate, 5–12 cm × 20–60 mm, apex acute, sparsely scabrous-pubescent on both surfaces, scabrous-ciliate on abaxial margins and midrib;

basal leaf blades broadly spatulate.

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

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

subcapitate between terminal pair of leaves, 10–50-flowered, congested, bracteate;

bracts lanceolate, herbaceous, ciliate.

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

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.

sessile to subsessile, 10–16 mm diam.;

calyx 10-veined, narrow and tubular in flower, clavate in fruit, 12–17 mm, margins dentate, lobes triangular-lanceolate, 2.5–2.5 mm, coarsely hirsute;

petals scarlet, sometimes white or pink, clawed, claw equaling calyx, limb spreading, obovate, deeply 2-lobed, 6–11 mm, shorter than calyx, appendages tubular, 2–3 mm;

stamens equaling calyx;

stigmas 5, equaling calyx.

globose, opening by 3 broadly triangular teeth;

carpophore 2–3 mm.

ovoid, 8–10 mm, opening by 5 teeth;

carpophore 4–6 mm.

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

dark reddish brown, reniform-rotund, 0.7–1 mm diam., coarsely papillate;

papillae ca. as high as wide.

= (34), 48.

= 24 (Europe).