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Limnocharitaceae was a family of in the monocot order Alismatales.Robert R. Haynes, Donald H. Les, and Lauritz B. Holm-Nielsen. 1998. "Limnocharitaceae". pages 271-275. In: Klaus Kubitzki (general editor) with Klaus Kubitzki, Herbert F.J. Huber, Paula J. Rudall, Peter F. Stevens, and Thomas Stützel (volume editors). The Families and Genera of Vascular Plants volume IV. Springer-Verlag: Berlin;Heidelberg, Germany. In the APG IV system, it is included in the family Alismataceae. It is Common name as the water poppy family. Species that have been placed in this taxon are small, Perennial plant, Aquatic plant Herbaceous plant, native to the tropics, but adventive or naturalized in the subtropics as a result of Gardening.Christopher D.K. Cook and Ole Seberg. 2007. "Limnocharitaceae". pages 379-380. In: Vernon H. Heywood, Richard K. Brummitt, Ole Seberg, and Alastair Culham. 2007. Flowering Plant Families of the World. Firefly Books: Ontario, Canada. .
The Limnocharitaceae include three genera, and these, in turn comprise eight species.Robert R. Haynes and Lauritz B. Holm-Nielsen. 1992. "The Limnocharitaceae" ( Flora Neotropica monograph 56). The New York Botanical Garden: New York, NY, USA. Some of the species are closely related and, consequently, hard to identify. Butomopsis is Monotypic taxon ( B. latifolia) and indigenous to tropical Africa, Southeast Asia, and northern Australia. Limnocharis and Hydrocleys are native to the neotropics. Limnocharis has two species. Limnocharis flava is grown as a Leaf vegetable in India and Isan, Thailand. Vegetables, spices and fruits of Thailand It has become a weed in Indonesia. It is sometimes sold as an Ornamental plant for aquaria. Hydrocleys has five species. Hydrocleys nymphoides is common in , and probably for this reason, it is persistent in the wild in Florida and Texas.Robert R. Haynes. 2000. "Limnocharitaceae". pages 5-6. In: Flora of North America Editorial Committee. Flora of North America vol. 22. Oxford University Press: UK. (vol. 22). (see External links below).
Perennial plant Herbaceous plant with Branch Plant stem. Leaf basal, petiolate. paracytic. present. Inflorescence scapose, with subtending each flower. Floral symmetry, bisexual, solitary or in Umbel. 3, persistent. 3, white or yellow. 3 to 100. Ovary superior. 3 to 20, in 1 (rarely 2) whorls, free or basally Connation. 12 to 100 per carpel and scattered over the inner surface. Fruit a follicle.
The Limnocharitaceae are closely related to the Alismataceae, but differ from them by the fully dehiscent fruit, numerous ovules per carpel, and laminar placentation. Members of both of these families have laticifers, petioles, a terminal pore on each leaf, a sepaloid calyx, and thin, evanescent petals.
The family Limnocharitaceae was separated from the Alismataceae by Armen Takhtajan in 1954,Armen L. Takhtajan. 1954. Proiskhozhdenie pokrytosemennykh rastenii. Moskva. - English translation by O.H. Gankin. 1958. Origin of Angiospermatous Plants. American Institute of Biological Sciences: Washington, DC, USA. (68 pages). but was not validly published until a Latin diagnosis was supplied by Arthur J. Cronquist in 1981.Arthur John Cronquist. 1981. "Limnocharitaceae" pages 1048-1049. In: An Integrated System of Classification of Flowering Plants. Columbia University Press: New York, NY, USA. The Limnocharitaceae were recognized by the Angiosperm Phylogeny Group in their APG II system of 2003, but in their APG III system of 2009, they sank the family back into the Alismataceae. Some molecular phylogenetic studies have indicated that the Limnocharitaceae might not be monophyletic, but paraphyletic over the Alismataceae sensu stricto.
The Limnocharitaceae are recognized as a distinct family by Heywood et al. 2007.
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