Genus of 18 species of evergreen, coniferous trees from tropical rainforest with a pronounced dry season in New Guinea, Australia, New Hebrides, New Caledonia, Norfolk Island, and Brazil. Araucaria heterophylla is the only species sold as s house plant. It is a slow-growing tree. The leaves are spirally arranged and are usually broadly triangular to needle-like. Male and female cones are green, maturing to brown, and are normally produced on separate trees. The female cones are spherical, ovoid or ellipsoid. The male cone are conical or cylindrical. Araucaria will grow to about 5 ft. Keep it pot-bound to restrict growth.