Flora of North America species comparison

erect, branched, rarely simple, 15–45 cm, with long, often crinkled hairs mixed with short pubescence, viscid-glandular distally.

erect, simple or with ascending branches, (20–)40–100 cm, coarsely puberulent, stipitate-glandular, viscid distally.

2 per node, blade with coarse, ascending, scabrous pubescence on both surfaces;

basal few, withering, blade oblanceolate to spatulate-petiolate, 0.5–5 cm × 3–15 mm;

cauline blades oblanceolate to lanceolate, 1–7 cm × 1–15 mm, apex obtuse or shortly acuminate to acute.

mid and proximal stem pairs connate, blade 1–several-veined, oblanceolate to narrowly lanceolate, (3–)5–12 cm × (3–)8–15 mm, apex acute, veins parallel;

basal leaf blades oblanceolate and ± obtuse, sparsely to moderately puberulent on both surfaces, rarely subglabrous.

open, with racemose branches, internodes and bracts usually ca. equaling fruiting calyx, 1–5 mm, longer proximally.

several–many-flowered, open, bracteate;

bracts resembling leaves but smaller.

ascending, straight, equaling or longer than calyx, densely stipitate-glandular, viscid.

5–8 mm diam.;

calyx prominently 10-veined, narrowly tubular-ovoid in flower, ovoid in fruit, constricted at mouth, 7–10 × 3–5 mm, membranous between veins, margins dentate, hispid, hairs ca. 2 mm, veins parallel, lobes lanceolate, 2–2.5 mm, apex greenish purple, acute;

petals white or pink, often with dark spot or dark pink throughout, clawed, claw equaling calyx, limb elliptic to obovate, lobed or unlobed, to 6 mm, appendages 2, oblong to narrowly lanceolate, 1–1.5 mm;

stamens equaling or shorter than calyx;

stigmas 3, included in calyx.

calyx prominently 25–30-veined, lobed to 1/3 its length but splitting further in fruit, umbilicate, narrowly conic in flower, conic-ovoid and inflated in fruit, 20–30 × to 15 mm, margins dentate, puberulent and stipitate-glandular, lobes 5, lanceolate, narrow, acuminate, veins parallel;

corolla deep pink, clawed, claw equaling or longer than calyx, limb slightly lobed or unlobed, broadly obovate, spatulate, 8–12 mm, appendages 2–4 mm, lobed or dentate;

stamens equaling claw;

stigmas 3, equaling claw.

equaling calyx, opening with 6 recurved, narrowly triangular teeth;

carpophore shorter than 1 mm, pubescent.

flask-shaped, 15–20 mm, opening by 6 recurved, lanceolate teeth;

carpophore to 2 mm.

dark reddish brown, reniform, angular with concave, radially ridged faces, broad outer edge transversely ridged and verrucose, ca. 0.5 mm broad.

brown, reniform, 1.2–1.8 mm broad, tuberculate.

= 24.

= 20, 24 (Europe, Asia).