Achillea millefolium L.

CHICAGO NATURAL HISTORY MUSEUM

VEGETATION SURVEY ALONG
THE ENTERPRISE-MACKENZIE
RIVER HIGHWAY, N. W. T.,
CANADA

July 2		John W. T hier et
	1959	Robert J. Reich

Achillea lanulosa Nutt. rays white

frequent in shallow residual soil of limestone out-
rop area, mile 28 1/2. scattered jack pine, white
spruce, and trembling aspen, ground cover plants
mainly lichens, Arctostaphylos uva-ursi, Juniperus
horizontalis, and Saxifraga tricuspidata, shrubs:
Juniperus communis, Potentina, Rosa, Shepherdia.
herbs: Zygadenus, Elymus innovatus, Galium sep-
tentrionale, Plantago septata.

specimens prepared by ihc formaldehyde method (see Rhodora 49: 54-60. 1947)

01824848