Key identifying traits
-
Leaves are finely divided and
feather like
-
Leaves are distributed evenly
along stems
-
Plants grow 1-2’ tall
-
Flowers are white to pinkish in
a flat topped cluster
-
Plant stems are covered with
wooly hair
-
Aromatic plant
Biology and ecology
-
A perennial plant spreading by
seeds and also has a weak spreading root system
-
It is known to be scattered
through the temperate Northern Hemisphere
-
Some sources say this plant is a
native and some say it has been introduced but all agree it is
widespread across the U.S.
-
Usually not considered highly
aggressive but has been found to be invasive in fields and
pastures especially when they are being grazed
-
Native Americans used it for a
variety of medicinal purposes, including remedies for coughs,
colds, throat irritations, toothaches, respiratory diseases, and
to treat wounds and stop bleeding
Control
Prevention –
Learn to identify plants; start monitoring early in the season
Biological –
No known biological control in our area
Cultural –
Plant competitive grass or other cover crop try not to overgraze
areas
Mechanical –
The plant can survive mowing but tillage will usually control it
Chemical – There is some
information in the
PNW Weed Management handbook
for specific chemical
recommendations. Yarrow is susceptible to mixes with dicamba or triclopyr
|
 |
