ruellia devosiana, ornamental tropical plant with purple flowers and colored leaves in the plant collection

acanthaceae blooming botany brazil brazilian wild petunia class color colored cultivation decorative devosiana exotic flora flowers foliage garden gardening greenhouse herbaceous horticulture houseplant lamiales landscaping leaf leaves magnoliidae narrow nature ornamental perennial pernambuco plant plantae purple ruellia species taxonomy tropical veined veins vibrant wet white