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Desert Lavender (Hyptis emoryi)
http://www.desert-tropicals.com/Plants/Lamiaceae/Hyptis_emoryi.html
Photo and horticultural data
Hyptis
http://www.forest.go.th/Botany/main/Research/SS_thesis/Chapter5/Hyptis.htm
A taxonomic key for the genus Hyptis
Hyptis capitata
http://www.uog.edu/cals/site/POG/hyptis.html
Photo, description and common names