Bacopa egensis
Proc. Acad. Nat. Sci. Philadelphia 98: 96. 1946.
Perennials. Stems prostrate, 15–30 cm, hairy. Leaves glabrous; blade base narrowly cuneate, margins crenate, apex rounded with a narrow petiolelike base. Pedicels 10–12 mm. Flowers: sepals 4 (or 5), ovate to oblong, calyx radially symmetric; corolla white with yellow throat, 3–5 mm; stamens 3 or 4, didynamous.
Phenology: Flowering Aug–Oct.
Habitat: Shallow, quiescent water, lakes.
Elevation: 0–20 m.
Distribution
Introduced; Ark., La., Central America (Costa Rica), Central America (Nicaragua), South America (Brazil), also in w, c Africa (Republic of Cameroon), c Africa (Democratic Republic of Congo), c Africa (Ghana), c Africa (Nigeria), c Africa (Senegal)
Discussion
Bacopa egensis was first collected in the United States by Josiah Hale in the early 1800s (C. E. Depoe 1969). There are subsequent collections from Arkansas and Louisiana.
Selected References
Lower Taxa
"outer wider" is not a number.