Orthosiphon aristatus (Blume) Miq.
Miquel, F.A.W. (1858) Flora van Nederlandsch Indie 2(6): 943.
Cat's Moustache; Cat's Whiskers; Whisker Plant
Erect to spreading, fleshy stemmed herb to 1 m high. Stems square-angled. Rooting along stem.
Inflorescence a cyme, terminal, 4-6 flowers per node. Calyx curved, 2.5-4.5 mm long, 2-lipped; lower lip 4-toothed; upper lip single, broad, often recurved. Corolla tube slender, 10-16 mm long, white to pale purple, 2-lipped; lower lip entire, concave; upper lip 4-lobed, curved. Stamens 4, all fertile, greatly longer than corolla tube. Style 5-6 cm long; stigma club-shaped, short 2-lobed.
Calyx persistent in fruit, 6.5-12 mm long, enclosing the nutlets. Nutlets smooth.
Features not available.