Nemastylis, or pleatleaf, is a genus of flowering plants in the family Iridaceae, first described as a genus in 1835. It is native to Mexico, Central America, and the southern part of the United States.Kew World Checklist of Selected Plant FamiliesBiota of North America Program 2013 county distribution maps The genus name is derived from the Greek words nema, meaning "thread", and stylos, meaning "pillar" or "rod".
Species Nemastylis floridana Small - Florida Nemastylis geminiflora Nutt. - south-central United States Nemastylis nuttallii Pickering ex R.C. Foster - Texas, Oklahoma, Arkansas, Missouri Nemastylis selidandra Ravenna - Texas Nemastylis tenuis (Herb.) S.Watson - Mexico, Guatemala, Honduras, Texas, Arizona Nemastylis tuitensis (Aarón Rodr. & Ortiz-Cat.) Ravenna - Jalisco State in Mexico
formerly included Nemastylis pearcei Baker = Tigridia pearcei (Baker) Ravenna Nemastylis mcvaughii Molseed & Cruden = Tigridia convoluta (Ravenna) Goldblatt
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