3. Mitreola angustifolia (Torrey & A. Gray) J. B. Nelson, Phytologia. 46: 339. 1980.
[E]
Narrow-leaved miterwort or hornpod
Mitreola sessilifolia (J. F. Gmelin) G. Don var. angustifolia Torrey & A. Gray, Fl. N. Amer. 2: 45. 1841
Herbs, 10–50 cm. Leaves usually sessile, sometimes subsessile; blade usually narrowly elliptic, sometimes elliptic, 0.9–3.3 × 0.2–0.6(–0.7) cm, larger leaves 4–5 times as long as wide, base usually rounded, sometimes cuneate, surfaces glabrous. Inflorescences congested, flowers longer than internodes, ultimate branches 1–1.5 cm. Flowers sessile; calyx slightly ciliate along margins and midrib outside, glabrous within; corolla white, 2–3 mm, throat with ring of hairs. Capsules 2–4 mm, horns lightly tuberculate mostly on inner faces. Seeds obliquely ellipsoid, 0.4 mm, reticulate.
Flowering Jun–Sep(–Oct). Coastal plain depressional wetlands; 0–30 m; Ala., Fla., Ga., Miss., S.C.
Cynoctonum angustifolium (Torrey & A. Gray) Small (1896) is a later homonym of C. angustifolium Decaisne (1844) and pertains here.