Callitris robusta (A.Cunn. ex Endl.) F.M.Bailey nom. illeg.
Callitris suissii Preiss ex R.T.Baker & H.G.Sm.
Callitris tuberculata R.Br. ex R.T.Baker & H.G.Sm.
Frenela crassivalvis Miq.
Frenela gulielmii Parl.
Frenela robusta A.Cunn. ex Endl. nom. illeg.
Callitris preissii is a species of conifer in the family Cupressaceae, endemic to Rottnest Island, Australia. Common names include Rottnest Island pine, Murray pine, maroong, southern cypress pine, and slender cypress pine. The Noongar peoples know the tree as marro.[3]
The pine can have a tree or shrub-like habit typically growing to a height of 1 to 9 metres (3 to 30 ft) and a width of up to 6 m (20 ft).[4] It is relatively slow growing. The crown is commonly made up fine, dense foliage.[5] The leaf is rounded on the dorsal side and the cones often have a width of over 2 cm (0.8 in) with scales that do not separate from the base. It starts producing brown-yellow-orange cones between October and January.[4] The root system is generally moderate to deep or shallow and spreading. It is reasonably long lived, usually to over 15 years of age.[5]
The plant makes a good windbreak or functions as a shelterbelt or shade for stock. The trunks make ideal fence posts and it has good ornamental attributes. The plant's pollen has value for apiculture. In urban areas it makes a good ornamental plant, or a free street tree, and is suitable as a screen or hedge.
