Botanical name: Mentha royleana Family: Lamiaceae (Mint family)
Synonyms: Mentha longifolia subsp. royleana, Mentha sylvestris var. royleana
Royle's Mint is an aromatic perennial herb, closely related to Horse Mint. Leaves are usually narrowly oblong-elliptic, frequently discolorous, clearly or shortly stalked, up to 8 mm. Flowers are small, whitish in whorls forming slender spike often interrupted below, borne at the ends of branches and forming a lax densely hairy inflorescence. Flower hairy out side. Bracts lanceolate. Sepals are sharply 5- tooth, bell shaped, petals 4- lobed, lobes erect, stamen 4, protruding. Fruit is a nutlet.
Identification credit: Gurcharan Singh
The flower labeled Royle's Mint is ...