, commonly known as Western Australian Peppermint
, Swan River Peppermint
and Willow Myrtle
, is a species of tree
that grows in the south west
of Western Australia
. It is easily the most common of the Agonis
species, and is one of the most recognisable trees of Western Australia, being commonly grown in parks and on road verges in Perth
occurs mainly as a small tree, usually less than 10 metres tall, although it may grow to 15 metres. It has fibrous brown bark, and long, narrow, dull green leaves, with tightly clustered inflorescences
of small white flowers in the axes. It grows in a weeping habit, and looks remarkably like the weeping willow
from a distance. It is most readily identified by the powerful odour of peppermint
that is emitted when the leaves are crushed or torn.
It flowers between August and December.
occurs in a sub-coastal strip from just north of Perth, southwards and then east beyond Bremer Bay
The genus name Agonis comes from the Greek agon, "a cluster", referring to the arrangement of the fruits. The species name flexuosa is Latin for "full of bends", referring to the zig-zag course of the stem, which changes direction at each leaf node. It was originally placed in the Leptospermum genus by Sprengel in 1819, but Schauer placed it in Agonis in 1844.
There are two recognised varieties: Agonis flexuosa var. flexuosa and Agonis flexuosa var. latifolia. The cultivar Agonis flexuosa 'Nana' is a dwarf form that is commonly seen in Perth as a hedge.
is an attractive garden or specimen tree in temperate climates. However, care must be exercised in selecting it for small areas, as in a yard setting. Quick growing the tree produces a large amount of detritus and its trunk can become large and disproportionate to the rest of the tree.
- Boland, D. J. et al. (1984). Forest Trees of Australia (Fourth edition revised and enlarged). Collingwood, Victoria, Australia: CSIRO Publishing. ISBN 0-643-05423-5.
- Blackall, W. E. and Grieve, B. J. (1980). How to Know Western Australian Wildflowers, Part 3A. 2nd ed., Nedlands, Western Australia: University of Western Australia Press. ISBN 0-85564-160-6.
- Powell, Robert (1990). Leaf and Branch: Trees and Tall Shrubs of Perth. Perth, Western Australia: Department of Conservation and Land Management. ISBN 0-7309-3916-2.