× Ruttyruspolia

The following details have been extracted from Leistner (2000), p.43: The essential difference between Ruttya and Ruspolia, is a 2-lipped corolla in Ruttya with a short broad tube widening gradually to the throat and in Ruspolia a subequally 5-lobed corolla with a narrowly cylindric tube. Both the wild and artificial hybrids have most of the morphological characters of the Ruspolia parent.