Callitris roei, or Roe's cypress-pine, is a species of Callitris native to Australia, where it is endemic to southwestern Western Australia from Moora south to Albany and east to Cape Arid National Park.
It is an evergreen shrub or small tree growing to 5 m tall. The leaves are borne in decussate whorls of three, scale-like, 2âÂÂ5 mm long and 1âÂÂ1.5 mm broad; leaves on seedlings are longer and needle-like, not scale-like. The seed cones are globose, 1âÂÂ2 cm diameter, with six scales in two whorls of three; they mature in about 18 months from pollination. The pollen cones are cylindrical, 3âÂÂ6 mm long and 1.2âÂÂ2 mm broad.