Hymenocallis howardii is a species of spider-lily, native to southwestern Mexico. It is known from the states of Nayarit, Colima, Guerrero, Jalisco, Michoacan, and Oaxaca.Bauml, James. Flora Novo-Galiciana 15: 212 1989.Kew World Checklist of Selected Plant FamiliesCONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, Mexico City. It is smaller than most other members of the genus, with scapes only about 60 cm tall. The species is named in honor of its discoverer, the late Thad Howard of Texas.
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