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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: Reaching 3 feet. Densely leafed.
- Leaves: Alternate, entire, lower leaves narrow at base,
middle and upper leaves conspicuously broad-based. Leaves are
heart shaped, green, and waxy. They grow 1-3 inches long.
- Flowers: Borne in the axils of the upper leaves. Flowers
are 1 inch long, with an extra 1/2-inch spur, yellow with an orange
bearded throat. Flowering occurs between May and August.
- Fruits: Two-celled capsules containing many irregular
Dalmatian toadflax is a perennial that grows from a branching woody
base. Originally native to southwestern Europe, it was introduced
to the United States as an ornamental plant. It is difficult to
control owing to an extensive root system.
Control should be geared toward preventing spread.
- Mechanical: Individual plants can be pulled, as long
as all lateral roots are removed as well.
- Chemical: Herbicides applied in early spring before bloom
helps. Contact you local weed control office for more information.
- Biological: Cultivation in early June, repeated frequently
with new growth is helpful. Seeding fall grass crops and cultivation
after the second year is effective.
Report all sightings to your local