Muskweed (Myagrum perfoliatum)
(Photo A. Storrie)
Muskweed (Myagrum perfoliatum) cotyledons are broad and club-shaped, making them different from any other brassica species. Leaves are a waxy blue-green, hairless and without petioles. They also have distinctive white veins. Rosettes grow to 450 mm in diameter and are very flat to the ground, somewhat like capeweed and unlike other brassica weeds such as wild radish. The flowers are small and pale yellow. The pods are hard, wedge-shaped, 5 to 7 mm long and 4 to 5 mm wide, and they stick out from the stem.
Factors that make muskweed a major weed:
- Staggered germination
- Produces a large number of seeds
- Creates a problem at harvest
- Herbicide control options are limited
- A serious grain contaminant
- Is dispersed by harvesting equipment and in grain and hay
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.
Integrated weed management of muskweed in cropping systems in Victoria (2000) (J Stuchberry)
Weed wiping - a useful took for integrated weed management (2002) (J Stuchberry)