Phaenanthoecium is a genus of plants in the grass family.Hubbard, Charles Edward. 1936. Bulletin of Miscellaneous Information Kew 1936(5): 329Tropicos, Phaenanthoecium C.E. Hubb.Grassbase - The World Online Grass Flora The only known species is Phaenanthoecium koestlinii, native to Northeast Tropical Africa (Sudan, Ethiopia and Eritrea) and Yemen.Kew World Checklist of Selected Plant FamiliesHedberg, I. & Edwards, S. (eds.) (1995). Flora of Ethiopia and Eritrea 7: 1-430. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.Wood, J.R.I. (1997). A Handbook of the Yemen Flora: 1-434. The Board of Trustees of the Royal Botanic Gardens, Kew.
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