Status: Declared Noxious Weed (Regionally Controlled).
Threat: High threat environmental weed.
Description: A dense low branching deciduous tall shrub to 6 metre tall. Stiff branches with thorns to 2.5cm long. Bark generally smooth but rough near base.
Flowers: White, cream or pink, 8–13mm in diameter with five petals and in flat-topped clusters at the end of small branches. Flowers in spring with a strong and sometimes pungent smell.
Leaves: Lobed and irregular varying from roughly oval to triangular shape on stalks. Edges generally toothed. Leaf stalks may have small leaf-like flaps at base.
Stems: Erect and spreading with many stiff branches with thorns.
Fruit: Clusters of fleshy deep red berries 8mm in diameter on long stalks in bunches mostly in summer.
Roots: Woody, mostly shallow lateral and some deep. Sucker readily when cut.
Notes: Spread primarily by birds and animals. Provides harbour for pest animals (rabbits) and disease such as Fire Blight. May also provide habitat for native birds and animals (e.g. Ring-tail Possum), if other native shrub species absent.
Control measures: Hand weeding, cut and paint or scrape and paint with suitable herbicide, spot spraying.
Dispersal: Water, seeds, vegetative.