DCHP-3

Canada thistle

DCHP-1 (pre-1967)

Entry from the DCHP-1 (pre-1967)

This entry may contain outdated or offensive information, terms, and examples.

a thistle, Cirsium arvense, introduced into Canada from France.

Quotations

1829
The plant is so rank that . . . it has even been said that it will exterminate the Canada thistle.
1964
For some time, weed specialists have sought a chemical that would not only kill the tops of Canada thistle, but would destroy underground growth without sterilizing the soil.