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Washington State Weeds


Sphaerophysa salsula

Family Name:


Class: C
Other Names:

Austrian peaweed

 Why is it a noxious weed?

Swainsonpea poses a serious threat to areas where grain is grown. Since Swainsonpea seeds are the size of alfalfa seeds, it can be a serious contaminant in alfalfa grown for seed. It is known as a troublesome and persistent weed.

More Information:




Visit Washington State Noxious Weed Control Board Here