Flora of North America species comparison

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

internodes 2-lined at first, then terete.

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.

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.

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

bracts and bracteoles relatively small.

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

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.

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.

3-valved, with glandular vittae.

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

narrowly cylindric, carinate;

testa reticulate-foveolate.

0.8–1.2 mm.

= 19.