Acacia dealbata
Environmental Weed (2024)
Common names
silver wattle
Biostatus
Exotic
Category
Vascular
Structural class
Trees & Shrubs - Dicotyledons
Flower colours
Yellow
Detailed description
Shrub to large tree with ribbed twigs. Leaves 2-pinnate, alternate and glaucous. Inflorescence consists of numerous many-flowered, medium yellow, globose heads arranged in axillary racemes nearly equal to the leaves. Pod glabrous, usually straight, up to 100 x 12 mm.
Similar taxa
Can easily be distinguished from all other bipinnate naturalised wattles by the large glaucous leaves.
Habitat
A plant of riverbed habitats and waste places. Prefers relatively high fertility and light.
Conservation status
Not applicable
Detailed taxonomy
Family
Fabaceae
Ecology
Flowering
July, August, September
Year naturalised
1870
Origin
E. Australia
Other information
Etymology
acacia: Derived from Greek ‘akazo’ to sharpen, meaning point; spine or thorn.
dealbata: Whitened
Environmental Weed (2024)
This plant is named in a list of 386 environmental weeds in New Zealand 2024 prepared by DOC. 759 candidate species were considered for inclusion on this new comprehensive list of environmental weeds in New Zealand. The species considered were drawn from published lists of weed species, lists of plants that must be reported or managed by law if observed, existing national and regional programmes and agreements for pest management, and species already managed by the Department of Conservation (DOC). Candidate species were then assessed to see if they were fully naturalised and whether they have more than minor impacts in natural ecosystems. Read the full report here.
NVS code
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.
ACADEA