|Common Name:||Hoary alyssum|
|Method of Transportation:||Spread as a contaminant in hay. Also spread by wildlife, birds, footwear, equipment, and vehicles.|
|Habitat/Range:||Low to mid elevations in direct sunlight and dry, gravelly soil. Found in ditches, disturbed plant communities, and heavily grazed pastures. Has the ability to invade irrigated alfalfa fields, dry land and rangelands. After drought or winterkill this plant tends to increase in forage crops.|
Hoary alyssum is a biennial with long slender stock growing up to 0.7 m and white flowers.The leaves are grey green in colour and the entire plant is covered in star shaped hairs. It reproduces by flattened oval seed pods, each containing 3 to 7 seeds that are easily transported.
Hoary alyssum easily invades pastures and is a contaminant in hay. If horses injest this plant it may cause limb edema, fever and laminitis.
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October 19th, 2017
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