Preliminary Flora of the Sierra La Púrica, Sonora, Mexico

The Sierra La Púrica is a Sky Island mountain range north- northwest of Nacozari de García (municipality of the same name), Sonora, Mexico, in the Área de Protección de Flora y Fauna Bavispe in the Comisión Nacional de Áreas Naturales Protegidas. The Madrean Archipelago Biodiversity Assessment Expedition Sierra La Púrica took place in July and September 2013. The preliminary flora contains 306 plant taxa in 215 genera and 71 families. Families with the most taxa were Poaceae (49 taxa), Asteraceae (43 taxa), and Fabaceae (32 taxa). Genera with the most species were Bouteloua (9), Quercus (8), Muhlenbergia (7), Eragrostis (6), Euphorbia (6), Ipomoea (5), and Solanum (5). Sixteen species (5.2%) are non-native. Stevia puricana, described by Billie L. Turner in 2015, is only known from the Sierra La Púrica.