Lachnocaulon (bogbutton) is a genus of plants in the Eriocaulaceae. It contains 7 known species, native to Cuba and to the southeastern United States (from Texas to Virginia).Kew World Checklist of Selected Plant FamiliesFlora of North America, Vol. 22, Lachnocaulon Kunth, Enum. Pl. 3: 497. 1841. Biiota of North America County Distribution mapsGovaerts, R. (2004). World Checklist of Monocotyledons Database in ACCESS: 1-54382. The Board of Trustees of the Royal Botanic Gardens, Kew.
Species Lachnocaulon anceps (Walter) Morong - from Texas to Virginia; Isla de la Juventud in Cuba Lachnocaulon beyrichianum Sporl. ex Körn - Florida, Georgia, Alabama, North and South Carolina †Lachnocaulon cubense Ruhland - Cuba, apparently extinct Lachnocaulon digynum Körn - from eastern Texas to the Florida Panhandle Lachnocaulon ekmanii Ruhland - Cuba Lachnocaulon engleri Ruhland - Florida, southern Alabama Lachnocaulon minus (Chapm.) Small - Florida, Georgia, Alabama, North and South Carolina
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