Ludwigia adscendens, the water primrose,[2] is a species of flowering plant in the evening primrose family. Its native distribution is unclear. It is now a common weed of rice paddies in Asia and occurs also in Australia and Africa,[3] but may have originated in South America.[4]
This plant is a perennial floating herb with white spongy buoys, and can float on water surface as well as creep over the surface of wetlands. The plant has simple leaves with elliptic blades, which are 0.4–7 cm long and 0.7–3 cm wide.[3] Its petioles are 0.5–1.0 cm short. Its cream flowers emerge singly at axils, and each have 5 sepals, 5 petals, and 10 stamens.[5]
References
- ^ "The Plant List: A Working List of All Plant Species". Retrieved 15 July 2015.
- ^ "Ludwigia adscendens". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 15 July 2015.
- ^ a b Jiarui Chen, Peter C. Hoch and Peter H. Raven (2007), "Ludwigia adscendens (Linnaeus) H. Hara, J. Jap. Bot. 28: 291. 1953", Flora of China online, vol. 13
- ^ Nayek, T.K.; Banerjee, T.C. (1987), "Life history and host specificity of Altica cyanea [Coleoptera: Chrysomelidae], a potential biological control agent for water primrose, Ludwigia adscendens", Entomophaga, 32 (4): 407–414, doi:10.1007/BF02372450, S2CID 44579133
- ^ Tanaka, Yoshitaka; Van Ke, Nguyen (2007). Edible Wild Plants of Vietnam: The Bountiful Garden. Thailand: Orchid Press. p. 106. ISBN 978-9745240896.