Petunioideae is a subfamily of the flowering plant family Solanaceae, the nightshades. It contains thirteen genera, as follows: * Benthamiella Speg. 12 species native to Patagonia: caespitose ("cushion-forming") dwarf shrubs. The species B. pycnophylloides Speg. bears the Spanish common name leña de piedra ("the kindling that grows on rock") in its native Argentina. * Bouchetia Dunal 3 neotropical species. * Brunfelsia L. Approximately 45 neotropical species. Shrubs with lavender or white flowers with slender tubes and narrow mouths in the centre of broad salver-form corolla lobes. Several species with medicinal and hallucinogenic properties. * Combera Sandw. 2 species native to Patagonia: C. paradoxa Sandw. from Argentina (provinces of Neuquén and Rio Negro and adjoining parts of Chil