english deutsch
Orthosiphon
http://www.forest.go.th/Botany/main/Research/SS_thesis/Chapter5/Orthosiphon.htm
A taxonomic key, distribution and ecology of this genus.
Orthosiphon aristatus
http://www.anbg.gov.au/images/photo_cd/732131822187/067.html
Photo of plant with flower.
Orthosiphon labiatus
http://www.plantzafrica.com/plantnop/orthosiphonlab.htm
Photo, description and growing tips for Orthosiphon labiatus.