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Publications: Noxious Weeds
in Slow Motion: A
talk by Jerry Asher about noxious weeds in the Blue Mountains
Click on a weed to learn about how to find it and kill it!
- Stems: Much branched, up to 4 feet in height. Lower 4
to 6 inches of stems are covered with coarse brown hairs.
- Leaves: Basal leaves have a dandelion-like rosette that
withers as the plant matures. Stem leaves inconspicuous, 4 inches
long, narrow and entire. Surface of leaves exude a milky latex.
- Flowers: Flowering heads scattered on branches, about
3/4-inch wide. Flower clustered in groups of 7 to 15, yellow,
- Seeds: Pale brown to nearly black, about 1/8-inch long
with a beak of same length that terminates in numerous soft white
bristles. Fruit body ribbed, smooth below with scaly projections
Rush skeletonweed is a perennial that grows from a stout taproot.
It has a stiff and bare appearance. The extensive root system makes
it difficult to control; any tillage spreads it farther. It spreads
primarily by seed, although roots scattered during cultivation may
- Mechanical: Do Not Pull! Pulling stimulates growth.
- Chemical: Tordon herbicide is effective, but it needs
rainfall afterwards. Call your weed board for information.
- Biological: Midges, mites, and galls, introduced bioagents,
are well established and seem to be controlling it and moving
with any spread. Sheep will eat it, and in severely infested sites,
Report all sightings to your local