Flora of North America species comparison

internodes 2-lined at first, then terete.

internodes with 2 or 4 raised lines at first, then terete (not lined).

sessile or (distal) subsessile, rarely amplexicaul;

blade narrowly oblong or elliptic to oblanceolate, 50–120(–150) × 10–40(–50) mm, base rounded to truncate or subcordate, apex rounded or rounded-apiculate to retuse, gland dots intramarginal.

sessile, subsessile, or petiolate;

blade relatively broad, venation pinnate, tertiary veins densely reticulate, glands punctiform, pale (records of black gland dots are probably all due to fungal attack), intramarginal and laminar.

spiciform-cylindric, 3–7-flowered from terminal node, with sessile or pedunculate inflorescences and flowering branches from to 4 proximal nodes.

terminal, sometimes also axillary, cymose, 2–15-flowered, or solitary flower, branching dichasial;

bracts and bracteoles relatively small.

15 mm diam.;

sepals narrowly oblong, 4–7 × 1–1.5 mm, apex acute to obtuse;

petals elliptic-obovate, 5–8 mm;

stamen fascicles 4–7 mm;

filaments 1/2+ connate;

styles 0.8–1.5 mm.

tubular or campanulate at first, expanding to stellate for short time each day;

sepals persistent, 5, distinct or almost so, margins not glandular-ciliate;

petals deciduous, 5, partly imbricate or contorted, pink or flesh-colored, sometimes green-tinged;

stamens persistent, 9, in 3 fascicles, each with 3 stamens;

filaments of each fascicle 1/5–1/2+ connate;

anthers yellow, isodiametric to oblate or shortly oblong, with amber gland on connective;

staminode fascicles 3, alternating with stamen fascicles;

ovary 3-merous;

placentation axile;

ovules relatively numerous on each placenta;

styles distinct, spreading.

cylindric, 8–12 × 3.5–4 mm, apex obtuse.

3-valved, with glandular vittae.

0.8–1.2 mm.

narrowly cylindric, carinate;

testa reticulate-foveolate.

= 19.