(online von http://www.mobot.org/MOBOT/research/APweb/ . Dort zitiert wie unter jedem Diagramm vermerkt):
Verbenaceae
map: from van Steenis & van Balgooy 1966; Hultén 1971; Meusel et al. 1978; Brummitt 2007. In Europe, Verbena officinalis may be native only from S. Europe eastwards; is Phyla nodiflora native to Australia?