Verbena Family - Photo (c) thesnaguy, some rights reserved (CC BY-NC-SA), uploaded by thesnaguy Comprehensive check list for Verbena Family (Family Verbenaceae)
Source: Calflora: Information on California plants for education, research and conservation. [web application]. 2012. Berkeley, California: The Calflora Database [a non-profit organization]. Available: http://www.calflora.org/ (Accessed: 04 07, 2012). (Link)