What do both Peraphyllum and Alkanna have in common?
Peraphyllum: Peraphyllum is a monotypic genus of flowering plants in the rose family, containing the single species Peraphyllum ramosissimum, commonly known as the squaw apple or wild crab apple. Alkanna: Alkanna is a genus of herbaceous plants including about 60 species of the family Boraginaceae.
plants