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Genus :


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Species of this Genus


Leafy, erect, perennial herbs. Stem simple or branched, glabrous or pilose. Leaves lobed or deeply laciniate, petiolate. Verticillasters many-flowered in upper leaf axils, remote or crowded into a spike-like inflorescence. Bracts subulate. Calyx turbinate, indistinctly bilabiate, 5-nerved, teeth 5, nearly equal, spiny, spreading to reflexed. Corolla bilabiate, exserted, tube glabrous within, sometimes annulate, upper lip scarsely falcate, lower lip spreading or reflexed, 3-lobed. Stamens 4, included, in 2-pairs, thecae 2-locular. Styles equally bifid. Nutlets smooth, sharply triquetrous, truncate at apex.