Flora of North America species comparison

erect, rarely decumbent, glabrous or papillose to hispidulous, especially distally.

cauline, alternate or pseudoverticillate in 2–5(–6) whorls;

petiole present;

blade maculate or not, lanceolate, elliptic-lanceolate, ovate-lanceolate, oblong-lanceolate, ovate, lanceolate-oblong, oblanceolate, elliptic, or spatulate, coriaceous, margins entire, serrulate, serrate, or crenate-serrate, revolute, surfaces glabrous or papillose.

corymbs or subumbels, rarely solitary flowers, not lax in bud or flower, erect in fruit, (symmetric);

peduncular bracts absent;

inflorescence bracts adnate to pedicels, sometimes scarcely so.

erect in fruit, (glabrous or papillose to hispidulous);

bracteoles absent.

radially symmetric, nodding or spreading;

sepals 5, connate proximally, often obscurely so, calyx lobes ovate, broadly ovate, or suborbiculate;

petals 5, distinct, white, pink, or rose, often tinged violet, without basal tubercles, (surfaces glabrous), corolla rotate to crateriform or broadly crateriform;

intrastaminal nectary disc present;

stamens 10, included;

filaments broad proximally, abruptly narrowed medially, slender distally, dilated basal portions ciliate or villous to densely villous;

anthers oblong, without awns, with tubules, dehiscent by 2 crescent-shaped to round pores;

pistil 5-carpellate;

ovary imperfectly 5-locular;

placentation intruded-parietal;

style (included), straight, expanded distally;

stigma entire or obscurely 5-ridged, without subtending ring of hairs.

capsular, erect, dehiscence loculicidal, no cobwebby tissue exposed by splitting valves at dehiscence.

ca. 1000, fusiform, winged.

= 13.