Polar Hawkweed

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	Hieracium atratum
	Family Name:	Asteraceae
	Class:	B
	Other Names:
	Why is it a noxious weed?	Polar hawkweed is a prolific seed producer and may potentially hybridize with native and non-native hawkweed species. It may take up nitrogen in nutrient poor soils and limit nutrients available to other plants.

More Information:

Visit Washington State Noxious Weed Control Board Here