Braid & C.T.White
Alphitonia petriei known as the White Ash is a rainforest tree in the Buckthorn family. It grows in eastern and northern Australia. Other common names include Red Ash, White-leaf, Pink Almond and Pink Ash. It was originally collected from the Johnston River near Kuranda, and named in 1925 by K.W. Braid. The authors gave it the species name petriei after W.R. Petrie, who alerted them to its distinctness.
Alphitonia petriei is usually found as a small tree around 20 metres (66 feet) tall. However, it has been recorded at 40 metres (130 feet) tall with a stem diameter of 60 cm in Queensland. The trunk and larger branches bear fissured grey bark (darker brown in Queensland), and peeling or bruising of it gives off a strong scent of liniment, which has been likened to oil of wintergreen methyl salicylate. Arranged alternately on the smaller branches, simple narrow leaves measure 7–15 cm (3–6 in) in length and are dark glossy green above and covered with fine white hairs underneath. The tiny (0.5 cm diameter) creamy flowers have five petals and are found in panicles at the end of branchlets or between leaves. Flowering occurs in September to November, followed by the production of globular dark fruit around 1 to 1.5 cm diameter from February to July.
It is found in coastal rainforest, and in ecotone areas in eucalyptus forest from Darwin and Thursday Island in northern Australia south along the eastern coastline to the Upper Orara River in New South Wales. The leaves and shoots are eaten by farm animals.
- Floyd, A.G., Rainforest Trees of Mainland South-eastern Australia, Inkata Press 2008, ISBN 978-0-9589436-7-3 page 324
- "Alphitonia petriei Braid & C.T.White". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. Retrieved 16 March 2013.
- Hyland, B. P. M.; Whiffin, T.; Zich, F. A.; et al. (Dec 2010). "Factsheet – Alphitonia petriei". Australian Tropical Rainforest Plants. Edition 6.1, online version [RFK 6.1]. Cairns, Australia: Commonwealth Scientific and Industrial Research Organisation (CSIRO), through its Division of Plant Industry; the Centre for Australian National Biodiversity Research; the Australian Tropical Herbarium, James Cook University. Retrieved 16 March 2013.