10. Œ. glaùca, Michx. Perennial, erect (2–3° high), glabrous and glaucous; leaves ovate to ovate-oblong (2–4´ long), repand-denticulate; flowers in short leafy corymbs; petals 9–15´´ long; capsule glabrous, ovoid-oblong, very broadly winged, usually abruptly contracted into a pedicel equalling or shorter than itself.—Mountains of Va. to Ala., west to Ky. and E. Kan.
11. Œ. speciòsa, Nutt. Perennial, erect or subdecumbent, finely pubescent; leaves oblong-lanceolate to linear, repand-denticulate, or more or less deeply sinuate-pinnatifid; flowers large, white or rose; capsule clavate-obovate, strongly 8-ribbed, rigid, acute, stoutly pedicelled.—Mo. to Kan. and Tex.
[*][*][*][*] Capsule oblong to ovate or orbicular, broadly winged, rigid and sessile.
[+] Acaulescent or nearly so; flowers white or rose-color.
12. Œ. tríloba, Nutt. Biennial or perennial, nearly glabrous; leaves 2–10´ long, somewhat ciliate, long-petioled, runcinate-pinnatifid or oblanceolate and only sinuate-toothed; calyx-tips free, the tube slender (2–4´ long); petals 6–12´´ long; capsule ovate, ½–1´ long, strongly winged, net-veined.—Ky. to Miss. and Tex., west to the Pacific.
Var. (?) parviflòra, Watson. Flowers very small (1–2´ long), fertilized in the bud and rarely fully opening; fruit abundant, forming at length a densely crowded hemispherical or cylindrical mass nearly 2´ in diameter and often 2–3´ high.—Plains of Kan. and Neb.
[+][+] Low caulescent perennials; flowers axillary, yellow.
13. Œ. Missouriénsis, Sims. Stems decumbent; pubescence short and silky, closely appressed, sometimes dense or wholly wanting; leaves thick, oval to linear, mostly narrowly lanceolate (2–5´ long), acuminate, entire or repand-denticulate; calyx-tube 2–5´ long; petals broad, 1–2½´ long; capsules orbicular, very broadly winged (1–3´ long).—Mo. and Kan. to Tex.
14. Œ. Fremóntii, Watson. Hoary with appressed silky pubescence; leaves linear, pointed, entire; calyx-tube 1–2´ long; petals ½–1´ long; capsule hoary, oblong, narrowed at base, 9´´ long.—Central Kan.
§ 2. Stigma discoid; calyx-tube more broadly dilated above; anthers oblong-linear; capsule mostly sessile, linear-cylindric; perennial, somewhat woody, with axillary yellow flowers.