Java ruellia (Ruellia treubiana)

Java ruellia (Ruellia treubiana) is a species of plant in the Acanthaceae, herbaceous, erect, up to 35 cm tall, cylindrical and green stems, fibrous and white roots.

R. treubiana has leaves sitting opposite each other with long stalks up to 1 cm. The leaves are oval, up to 6.5 cm long, up to 4 cm wide, pointed at the tip, a main vein in the middle with many small pinnate veins and flat margins.

Fan-shaped flowers with five fins, bluish white, up to 3.5 cm long and up to 2.5 cm wide. This species grows on the forest floor in narrow colonies, under teak forests that tend to be shady, on the edge of puddles, on the edge of roads etc.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Lamiales
Family: Acanthaceae
Subfamily: Acanthoideae
Tribe: Ruellieae
Subtribe: Ruelliinae
Genus: Ruellia
Species: Ruellia treubiana

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