WESTERN YARROW - USDA

Warwick, S.I. and L. Black. 1982. The biology of Canadian weeds. Achillea millefolium L. Canadian Journal of Plant Science. 62:163-182. Wasser, C.H. 1982. Ecology and culture of selected species useful in revegetating disturbed lands in the West. USFWS FWS/OBS-82/56. 347 pp. ................
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