CUPRESSACEAE - Cypress Family

Shrubs or small trees, often grown in gardens as specimen plants. About 140 species, mostly in temperate regions. Western Australia has nine native species plus at least one naturalised.


Callitris (cypress-pines) is largely an Australian genus with roughly spherical cones made of six valves, three short and three long. There are five Western Australian species but several eastern Australian species have been planted and
C. columellaris (coastal pine) has escaped into John Forrest National Park and onto roadsides near North Dandalup. (It can be distinguished from the superficially similar local native Actinostrobus pyramidalis because that has all the cone valves equal in size and grows in swampy, winter wet soil.) In addition, C. glaucophylla, C. robusta and C. verrucosa have escaped from the arboretum at Dryandra, and possibly also at other sites.


PINACEAE - Pine Family

A family of Northern Hemisphere trees, important for their timber. Many have been grown experimentally in Western Australia, but did not perform well until their fungal partners were also introduced.


Two species of Pinus (pines) have been planted extensively and their seedlings are naturalising away from the plantations. P. pinaster (maritime pine) has pairs of leaves (needles)
10-17cm long, and is originally from the Mediterranean.

Pinus pinaster. GK

P. radiata (Monterey pine, radiata pine) has needles in threes and comes from California. Both are invading road verges and bushland between Perth and Albany. Other species recorded as spreading from plantings include P. canariensis (Canary Island pine),
P. halepensis (Aleppo pine), P. pinea (stone pine) P. ponderosa (ponderosa pine) and - in TAXODIACEAE, the Redwood Family - Sequoia sempervirens (coast redwood).


Sequoia sempervirens. RC

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