Flora of North America species comparison

erect, usually simple, 30–150 cm, with short, dense, eglandular pubescence, sparsely so toward base.

erect from sometimes decumbent base, little-branched, subscapose with 2–3 pairs of reduced leaves, 10–20(–30) cm, finely retrorse-puberulent proximally, stipitate-glandular and viscid in inflorescence.

sessile, 2 per node;

blade prominently 3–5-veined, ovate-acuminate, round at base, (4–)6–10(–13) cm × (20–)30–50(–90) mm, appressed-pubescent on both surfaces.

basal petiolate, blade oblanceolate to spatulate, (1.5–)2–5(–6) cm × 2–7 mm, thick and ± fleshy, apex broadly acute, puberulent on both surfaces;

cauline blades linear-oblanceolate to linear-lanceolate, 0.5–2 cm × 1–3 mm.

paniculate, narrow, many-flowered, open, bracteate, pedunculate, 10–50 × 3–5 cm, densely puberulent;

bracts narrowly lanceolate, 3–15 mm, apex acuminate;

peduncle ascending.

open, 1–3(–5)-flowered, bracteate;

bracts lanceolate, 2–7 mm, herbaceous.

ascending, recurved near apex, ca. equaling calyx.

erect and straight or slightly deflexed near apex, 5–20 mm, stipitate-glandular, hairs with colorless septa.

nocturnal;

calyx prominently 10-veined, tubular to narrowly campanulate and 6–9 × 3–4 mm in flower, turbinate and 10–12 × 4–5 mm in fruit, narrowed proximally around carpophore, veins parallel, green, broad, with pale commissures, puberulent, sometimes with few glands, lobes triangular-acute, 2–3 mm;

corolla white, clawed, claw equaling calyx, broadened into limb, limb obtriangular, deeply lobed, 7–9 mm, lobes ca. 8, linear, appendages minute;

stamens slightly longer than corolla;

styles 3, ca. 2 times as long as corolla.

calyx prominently 10-veined, in flower broadly cylindric, 8–10 × 3–4 mm, in fruit becoming campanulate and somewhat contracted at base, 8–12 × 5–7 mm, membranous between veins, margins dentate, hairs with colorless septa, veins parallel, purplish, with pale commissures;

lobes ovate, ca. 2 mm, shorter than tube, apex flushed with dark red, shortly apiculate with broad, scarious margins, glandular, puberulent;

petals exserted, pink to dusky purple, clawed, claw equaling or slightly longer than calyx, limb 2-lobed, 3–5 mm, each lobe with lateral tooth, tooth usually small, rarely larger and equaling lobes, appendages 2, 0.7–1.5 mm;

stamens equaling petals;

stigmas 3(–4), equaling petals.

narrowly ovoid, slightly longer than calyx, opening by 3 (splitting into 6) ascending teeth;

carpophore 2–2.5 mm.

slightly exceeding calyx, ovoid, opening with 6 (or 8) ascending to slightly recurved teeth;

carpophore 2–3 mm.

dark brown, reniform, 0.8–1.5 mm, shallowly tuberculate.

pale brown, reniform, 2–3 mm, sides with close radiating ridges, margins broadened and winglike.

= 48.

= 48.