Flowers of members of the Elaeagnifolium clade. A Solanum elaeagnifolium, with divergent anthers of approximately equal size and shape (Argentina, Mendoza, Knapp et al. 10470) B Solanum homalospermum (Argentina, Catamarca, Chiarini et al. 505) C Solanum hindsianum (cultivated in Arizona) D Solanum houstonii, hermaphroditic flower and strongly curved buds (Mexico, Yucatán, Peña-Chocarro et al. 407) E Solanum houstonii, staminate flower (Mexico, Querétaro, Ochoterena et al. 976) F Solanum mortonii (cultivated in Córdoba; from Barboza et al. 644). Photographs A, D, E by S. Knapp; B, F by F. Chiarini; C by Eugene Sturla.