Flower 

Diffuse Knapweed Flower

Also known as white knapweed and tumble knapweed was introduced here as a contaminant of alfalfa from the caspian sea region of turkistan. Diffuse knapweed has hairy greyish green split leaves on many branches growing from a single upright stem. Diffuse Knapweed Minnesota Department Of Agriculture Spotted knapweed on the other hand has pink to purplish flowers with prominent black spots on the bracts beneath. Diffuse knapweed flower. Leaves are small elliptical yellow to brown bracts surround the flowers. Russian knapweed rhaponticum repens l hidalgo. Biological control agents available for…

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