Harley*, R.M. (2002). Lamiaceae. In Mori, S., (ed.) Guide to the vascular plants of Central French Guiana. Part 2. Dicotyledons. Memoirs of the New York Botanic Garden 76 (2): 363-369.
* denotes Kew authors
Drylands Tropical America
Lamiaceae
Harley, Ray