Botanical name: Leucas marrubioides Family: Lamiaceae (Mint family)
Horehound Leucas is an erect herb, simple or branched, growing to only 20 cm tall. The species name marrubioides means resembling Horehound (Marrubium). Indeed the the plant has the same form of opposite leaves with widely spaced dense whorls of tiny white, 2-lipped flowers. Stem is quadrangular, white velvety. Leaves are ovate, toothed, tip acute or blunt, base rounded. Leaves are silvery velvety beneath. Flowers are white, in axillary densely flowered whorls. Bracts are about 8 mm long, linear, hairy. Sepal tube is narrow, 6 mm long, 10 ribbed, hairy outside, mouth hairless. Flowers are 2-lipped - upper lip is hairy, lower one is 3-lobed, midlobe larger, notched. Flowering: August-September.
The flower labeled Horehound Leucas is ...