Thyrsanthemum is a genus of plants in the Commelinaceae, first described in 1946. The entire genus is endemic to Mexico.Kew World Checklist of Selected Plant FamiliesHunt, D. R. 1993. Commelinaceae. 13: 130–201. In R. McVaugh (ed.) Flora Novo-Galiciana. The University of Michigan, Ann Arbor.García-Mendoza, A. J. & J. Meave del Castillo. 2011. Diversidad Florística de Oaxaca: de Musgos a Angispermas 1–351. Universidad Nacional Autónoma de México, Ciudad Universitaria
Species Four species are accepted. Thyrsanthemum floribundum (M.Martens & Galeotti) Pichon - Guerrero, Jalisco, Oaxaca, Michoacán, Hidalgo, Puebla Thyrsanthemum goldianum D.R.Hunt - Guerrero, Michoacán, México State, Nayarit Thyrsanthemum laxiflorum – central and southwestern Mexico Thyrsanthemum macrophyllum (Greenm.) Rohweder - Oaxaca
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