Water-Willow
Justicia sp.
Observed blooming at a roadside near Tambach, Kenya, Africa. December 2012.
LEAVES: The opposite leaves are elliptical with conspicuous veins and
pubescence. The margins are smooth, entire.
HERBACEOUS: Herbaceous growth reaching 1 to 2 meters tall with a number
of clustered stems. 
FLOWERS: Small, white with lavender markings and bilaterally symmetrical.
RANGE: One of several species of Justicia found in highland
areas of Kenya and Rift Valley.
FRUIT: Two-valved, capsules.
UNARMED However, the bracts subtending the flowers are stiff and
pointed.