Solanum riojense A habit B flower at anthesis C stamen D style with pubescence in basal half E fruit with slightly reflexed calyx lobes (A–D Cabrera et al. 21489). Illustration by V. Dudas. Previously published in Cabrera (1983: 418) and in part in Barboza et al. (2013: 244), as S. echegarayi.

 
 
  Part of: Knapp S, Särkinen T, Barboza GE (2023) A revision of the South American species of the Morelloid clade (Solanum L., Solanaceae). PhytoKeys 231: 1-342. https://doi.org/10.3897/phytokeys.231.100894