Vascular – Exotic
Trees & Shrubs - Dicotyledons
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
Waste places, scrubland, pasture, riverbanks
Wetland plant indicator status rating
UPL: Obligate Upland
Rarely is a hydrophyte, almost always in uplands (non-wetlands).
Shrub to large tree, twigs ribbed or angled. Leaves 2-pinnate, pinae in 9-18 pairs, pinnules close-set, dark green and in 20-60 pairs. Inflorescence consists of many pale creamy yellow globbose heads arranges in racemes. Seed pod straight or somewhat curved, up to 90 x 7 mm, usually constricted around each seed.
A. mearnsii is easily distinguished by the dark green foliage, creamy yellow flowers and the most pinnules of all the 2-pinnate wattles naturalised.
July, August, September
S.E. Australia, Tasmania
acacia: Derived from Greek ‘akazo’ to sharpen, meaning point; spine or thorn.
Reason For Introduction
Life Cycle Comments
Perennial. seeds have been known to germinate after 90 years.
Seed is produced in large numbers in dark brown pods. Seed viability is estimated at 50 years. Mass germination is likely following fire, or mechanical disturbance. Saplings may coppice if cut, but does not sucker.
Seed is produced in large numbers in dark brown pods. Seed viability is estimated at 50 years. Mass germination is likely following fire, or mechanical disturbance.
Spread by people for firewood and as an ornamental tree. Seed dispersed locally by wind and gravity.
Can tolerate dry conditions and frosts to about -7 degrees.