Difference between revisions of "Bacopa egensis"
Proc. Acad. Nat. Sci. Philadelphia 98: 96. 1946.
Common names: Brazilian water-hyssop
Introduced
Basionym: Hydranthelium egense Poeppig in E. G. Poeppig and S. L. Endlicher Nov. Gen. Sp. Pl. 3: 75, plate 287, figs. 1–10. 1845
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Revision as of 18:31, 24 September 2019
Perennials. Stems prostrate, 15–30 cm, hairy. Leaves glabrous; blade base narrowly cuneate, margins crenate, apex rounded with a narrow petiole-like 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
Ark., La., Central America (Costa Rica, Nicaragua), South America (Brazil), introduced also in w, c Africa (Republic of Cameroon, Democratic Republic of Congo, Ghana, Nigeria, 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
None.