Pacific Island Ecosystems at Risk (PIER)

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Acacia dunnii
Turrill, Fabaceae
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Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Common name(s): [more details]

English: Dunn's wattle, elephant-ear wattle

Habit:  tree

Description:  "Pruinose shrub or tree to 6 m high.  Branchlets terete, glabrous.  Phyllodes inequilaterally elliptic to ovate, shallowly falcate, 12-42 cm long, 6-17.5 cm wide, very unequal at base, 2-4 times crenate on upper margin, obtuse, coriaceous, glabrous, with 4 or 5 prominent longitudinal nerves confluent with lower margin at base, closely reticulate between main nerves.  Inflorescences in terminal or axillary panicles 11-50 cm long; peduncles 8-20 mm long, single or fascicled, glabrous; heads globular, 6-8 mm diameter, 50-85-flowered, golden.  Flowers 5-merous; sepals 1/4-1/2-united.  Pods narrowly oblong, straight, to 17 cm long, 2-4 cm wide, subwoody, coarsely reticulate.  Seeds transverse, broadly elliptic to oblong-elliptic, 9-12 mm long, subnitid, brown with brown-black periphery; aril apical"  (Orchard & Wilson, 2001; p. 152).

Habitat/ecology:  In Australia, "grows in gravelly soil, often on rocky slopes" (Orchard & Wilson, 2001; p. 152).

Propagation:  Seed

Native range:  North-western Australia lowlands in Western Australia and the Northern Territory. Also recorded from some islands near the Kimberley coast. (Orchard & Wilson, 2001; p. 152).

Presence:

Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia
Australia (continental)
Australia (continental) native
Orchard, Anthony E./Wilson, Annette J. G. (2001) (p. 152)
Northern Territory and Western Australia
Australia
Australia (continental)
Northern Territory introduced
invasive
cultivated
Orchard, Anthony E./Wilson, Annette J. G. (2001) (p. 152)
Becoming established where not native.
Naturalized

Comments:  "Widely cultivated with occasional escapees becoming established in the Northern Territory [Australia]" (Orchard & Wilson, 2001; p. 152).


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This page was created on 13 APR 2005 and was last updated on 19 FEB 2013.