Black bindweed (Fallopia convolvulus)
Black bindweed climbing wheat
(Photo A. Storrie)
Black bindweed or climbing buckwheat (Fallopia convolvulus
) is an annual herb with twining stems to 1 m long. Cotyledons are narrow-clubbed with rounded tips. Arrow-shaped leaves are hairless to slightly ‘mealy’ with a prominent mid-vein. The leaf margin has small, shallow, rounded ‘teeth’. Flowers are greenish white and the seed is dull black and tri-angled.
Factors that make black bindweed a major weed:
- Is competitive in crops
- Produces a large number of seeds
- The twining habit of black bindweed causes problems of blockages in tillage equipment and contamination in grain samples
- Is tolerant of many herbicides, particularly once it has more than two true leaves
- Resistance to Group B herbicides was first recorded in 1993
Further detail about this weed including integrated weed management tactics that could be considered when developing a management plan can be found in the section on problem weeds in the Integrated Weed Management Manual.
Ecology and biology of common weeds are outlined in section 6 of the Integrated Weed Management Manual.