Orthosiphon Benth.

1 species native Aust.; Qld, NSW

Orthosiphon aristatus (Blume) Miq.

Slender shrub to 50 cm high. Leaves, narrow-ovate to rhombic, 3–16 cm long, 2–5 cm wide, hairy and with sessile glands, margins toothed, petiole 1–6 cm long. Corolla 10–16 mm long, white to lilac, upper lip slightly 4-lobed and recurved. Stamens exserted. Style 5–6 cm long, stigma 2-fid. Gosford area. RF margins. Fl. autumn-winter