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When sage was identified in
America:
Mediterranean sage is
a Class A noxious weed in Washington, and it is
currently known from Klickitat
County,
with an estimate
of less than 10 acres. This species was first identified in 1951 from Columbia County,
with about 400 acres found along the Touchet River.
Mediterranean sage is on the noxious weed lists for the following
states: CA,
CO, NV, OR, and WA. Mediterranean sage was identified in 1892 in
CA. It
was known as a roadside plant for 60 years, when new highway
construction
contributed to wide spread distribution. In 1994, California
reported
7,000 acres. In Oregon,
Mediterranean sage was known since the 1920’s, and it was
considered
established in that state by 1949, with an estimated 42,240
acres. By
1954, Oregon reported over 100,000
acres, and
by 1995 Oregon
estimates over 1,300,000 acres of Mediterranean sage. Idaho records
indicate this species was
identified in 1967, with 4,000 acres reported by 1994. Colorado
reports Mediterranean sage remained
a stable colony for about 40 years before it began to spread rapidly.
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