Solanum rostratum
n = ploidy missing =12 voucher missing = (Löve 1979)
Open and often disturbed sites, versatile in soil tolerance, a noxious weed of roadsides and overgrazed pasturelands. The native range probably extends from Mexico City N across Mexico and the Great Plains of the United States. Outside this area , Solanum rostratum is a widely introduces weed in disturbed habittats (e.g. Russia and Australia).
Solanum rostratum is a member of section Androceras series Androceras (sensu Whalen, 1979) of the Leptostemonum clade (Bohs, 2005).
Whalen, M.D. 1979. Taxonomy of Solanum section Androceras.
Gentes Herb. 11: 359-426.
Löve, A. 1979. IOPB Chromosome Number Reports. 63.
Taxon 28: 276 (Solanaceae contributed by M.D. Whalen).
Bohs, L. 2005. Major clades in Solanum based on ndhF sequences.
Pp. 27-49 in R. C. Keating, V. C. Hollowell, & T. B. Croat (eds.), A festschrift for William G. D’Arcy: the legacy of a taxonomist. Monographs in Systematic Botany from the Missouri Botanical Garden, Vol. 104. Missouri Botanical Garden Press, St. Louis.