Seaside petunia

Petunia parviflora Jussieu, Ann. Mus. Natl. Hist. Nat. 2: 216, plate 47, fig. 1. 1803

Stems 0.1–1 m, internodes sometimes relatively long. Leaf blades deflexed in fruit, elliptic-spatulate, 2–6(–10) mm, fleshy. Flowers: calyx 5–10 mm; corolla 5–15 mm. Capsules 3–5 mm, calyx associated with developing fruit. Seeds pale brown, 0.5–0.8 mm.

Flowering Mar–Nov. Disturbed, sandy soils, coastal dunes, sandy to muddy margins of seasonal wetlands, reservoirs, ballast; 0–1500 m; introduced; Ala., Ariz., Calif., Colo., Fla., Ga., Kans., La., Md., Miss., Nev., N.J., N.Mex., N.C., S.C., Tex., Utah, Va.; South America (Argentina, Paraguay, Uruguay); introduced also in Mexico, Central America (Belize, Costa Rica, El Salvador, Guatemala, Honduras, Panama), elsewhere in South America (Bolivia, Brazil).

Stems, leaves, and flowers of Calibrachoa parviflora are occasionally encrusted with sand or soil particles captured by the glandular indument.