Conifers are a diverse group of plants, ranging from tiny dwarf specimens to the tallest trees known. They date back to a time before flowering plants existed. They are mainly cone-bearing plants, the cones may appear to be like tiny berries or enormous cones that can be lethal if one lands on your head.
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.