Germinating in the spring, Cornbind (Fallopia convolvulus) is an annual with a scrambling and twining growth habit. It is problematic in cultivated crops and is common in the North Island but is very abundant in Canterbury.
- Narrow club shaped
- Apex round with mild point
- Base tapered. Stalkless
- Heart shaped, pointed at the apex
- Indented at the base – basal lobes pointed
- Long stalked
Cornbind has long slender stems that twine in a clockwise direction. The arrow shaped leaves are large and greenish-white flowers are produced on stems that arise from leaf axils.
The flowers produce shiny black seeds.