Weed Control

SDSU Cooperative Extension Service

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plant

Life cycle: Local noxious. Biennial.

Leaves: Very large, coarse, gray-green, spine-tipped, with dense hair.

Stems: 5 to 6 feet tall. Strongly branched. Heavy winged appendage growth.

Flowers: 1 to 2 inches, reddish-purple. Sharp bracts on base.

Roots: Heavy taproot. Forms rosette first year.

Weed Species: local noxious weed

Comments: Control before bloom.