Pherotrichis is a plant genus in the family Apocynaceae, first described as a genus in 1838.Decaisne, Joseph. 1838. Annales des Sciences Naturelles; Botanique, sér. 2 9: 322 (in obs.).Tropicos, genus Pherotrichis It is native to Mexico and Arizona.Davidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera. 2009. Cucurbitaceae a Polemoniaceae. 4(1): i–xvi, 1–855. In G. Davidse, M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera (eds.) Flora Mesoamericana. Universidad Nacional Autónoma de México, México D.F.García-Mendoza, A. J. & J A. Meave. 2011. Diversidad Florística de Oaxaca: de Musgos a Angispermas 1–351. Universidad Nacional Autónoma de México, Ciudad UniversitariaStevens, W. D. 2005. New and interesting milkweeds (Apocynaceae, Asclepiadoideae). Novon 15(4): 602–619
SpeciesThe Plant List genus Pherotrichis Pherotrichis leptogenia B.L.Rob. - Jalisco Pherotrichis mixtecana Brandegee - Oaxaca Pherotrichis schaffneri A.Gray - San Luis Potosí, Cochise County in Arizona
formerly included moved to Matelea Pherotrichis villosa (Schult.) Meisn, synonym of Matelea balbisii (Decne.) Woodson.
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