Vitex is a genus of about 250 species of shrubs and trees, 1-35 m tall, native to tropical, subtropical and also warm temperate regions throughout the world. In the past widely included in the family Verbenaceae, it has recently been transferred to the family Lamiaceae (Labiatae, the Mint family).[1][2][3]
^ Ray Harley, "In search of Labiatae in Eastern Brazil", Vitex: A Newsletter for Lamiaceae & Verbenaceae Research, ISSN 1470-0123, Issue 1, February 2000, page 5.