(Also known as Rambling Dock)
Acetosa sagittata
Family: Polygonaceae
Type of weed: Herbaceous weed
Priority Weed Local Priority Weed. (See more weeds of the Local Priority Weed class.)
Flowering Months: September, October, November
Description
A vigorous prostrate and climbing perennial herb. It can grow to 5m long. The plant produces chains of underground tubers.
Leaves are a distinctive bright green with an arrow-head shape.
Flowers are arranged in branching clusters. The plant flowers in spring. Flowers change from green-cream in colour to red.
The cream-coloured paper-like fruit is three-winged and turn brown with age. Each wing contains one seed.
Dispersal
Seed is spread by wind and water. It also spreads in dumped garden waste and contaminated soil.
Impact on bushland
Plants produce thousands of seeds that germinate under native vegetation. As the plant grows it smothers the supporting plant. Turkey Rhubarb will regenerate from tubers if top growth is removed.
Distribution
Alternative planting
Native plants
- Wonga Wonga Vine (Pandorea pandorana)
- Water Vine (Cissus antarctica)
- Old Man’s Beard (Clematis aristata)
NB: not Clematis cultivars; these can also be environmental weeds.
Council provides a tool, on its Mountain Landscapes website, to help you choose native alternative plantings. Choose your village, soil, vegetation community and the purpose of your planting, and the tool will give you suggestions.
There are native nurseries in several Blue Mountains villages, including Glenbrook, Lawson and Katoomba. Please also ask at your favourite local nursery.
Control
Specific control tips for this weed
CONTROL MEASURE: THE SPREAD OF THIS PLANT SHOULD BE ADEQUATELY CONTAINED TO PREVENT SPREAD IMPACTING ON PRIORITY ASSET. WEED NOTICES WILL ONLY BE ISSUED FOR THESE WEEDS UNDER SPECIAL CIRCUMSTANCES
Control involves stopping seed production. Pull off flower heads and bag.
All control technques will require regular follow-up to eliminate this weed.
- Dig out tubers in areas where erosion will not be a problem.
- Scrape and paint stems with herbicide. If spraying, ensure that total coverage of leaves with herbicide is achieved.
For key points on these techniques:
Local Priority Weed
Control measures:
- The plant should be fully and continuously suppressed and destroyed.
- Plants under 4 metres in height should be fully and continuously suppressed and destroyed.
- The spread of this plant should be adequately contained to prevent spread impacting on priority assets. Weed notices will only be issued for these weeds under special circumstances.
