Flora of North America species comparison

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

solitary or numerous, decumbent and rooting at base, becoming erect, 5–14(–25) cm, with gray, soft, curly to retrorsely crispate pubescence, rarely glandular.

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.

blade spatulate or narrowly lanceolate to oblanceolate, sometimes broadly so, 4–7(–10) cm × 8–12(–20) mm, reduced toward base, apex acute, pubescent on both surfaces, especially on midrib;

subterranean bractlike, papery.

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

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

peduncle ascending.

reduced to single, terminal flower or open, (1–)3–5(–9)-flowered cyme, bracteate;

bracts leaflike, reduced distally to ca. 1 cm.

ascending, recurved near apex, ca. equaling calyx.

ascending, straight, 1–6 cm, with a short canescence.

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 10-veined, broadly tubular in flower, 12–25  5–8 mm, turbinate in fruit and swelling in middle to ca. 10 mm broad, canescent, rarely sparsely pubescent or glandular;

lobes lanceolate, 4–7 mm, with narrow, membranous margins, apex acute;

corolla coral pink or white, clawed, claw equaling calyx;

limb 4-lobed, usually deeply so, rarely 2-lobed with smaller lateral teeth, lobes 7–22 mm, appendages 2, linear, 1.5–3.5 mm (absent in subsp. bolanderi);

stamens slightly longer than corolla claw;

stigmas 3, slightly longer than corolla claw.

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

carpophore 2–2.5 mm.

ovoid to oblong, equaling calyx, dehiscing by 6 teeth;

carpophore 2–5 mm.

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

dark brown to black, reniform, ca. 2 mm broad, with concentric rings of small papillae.

= 48.