Cephalanthus salicifolius is a species of flowering plant in the family Rubiaceae.Humboldt, Friedrich Wilhelm Heinrich Alexander von & Bonpland, Aimé Jacques Alexandre. 1809. Plantae Aequinoctiales 2: 63–64, pl. 98. Cephalanthus salicifoliusDavidse, G., M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera. 2012. Rubiaceae a Verbenaceae. 4(2): i–xvi, 1–533. In G. Davidse, M. Sousa Sánchez, S. Knapp & F. Chiang Cabrera (eds.) Flora Mesoamericana. Missouri Botanical Garden Press, St. Louis. Common names include Mexican buttonbush, mimbre, botoncillo, and Jazmin blanco. Its native range extends from the banks of the southernmost stretch of the Rio Grande in Cameron and Hidalgo Counties of Texas through much of Mexico from Coahuila to Oaxaca; a disjunct population exists in Honduras.Biota of North America Program, distribution map, Cephalanthus salicifolius
Like other species in its genus, Mexican buttonbush grows in the wet soils of riparian zones, swamps, and pond margins. It is a deciduous shrub or small tree, reaching a height of and a width of . The oblong leaves reach in length and in width. The white flowers are produced from March to July; the fruit is a collection of brown nutlets.
References
External links Texas A&M University, Texas Native Plants Database, Mexican buttonbush Gardening Europe, Cephalanthus salicifolius Field Museum in Chicago, photo of herbarium specimen of Cephalanthus salicifolius collected in Honduras