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Species
Information
- Dalmatian
toadflax
- Linaria
dalmatica (L.) P. Mill.
- USDA
Symbol: LIDA
- Oregon
Noxious Weed Designation: B
- Pictures
Identification:
Perennial; blooms summer to fall. Grows 2-3 ft tall. Leaves waxy, green, heart-shaped and 1-3 in long. Yellow flowers 1 in long and similar to snapdragons. Spreads both by seeds and creeping lateral roots.
Impacts: This deep rooted perennial out-competes desirable forage plants for moisture and nutrients. It thrives in arid rangelands, pastures, forests and right-of-ways. Summertime control may be less successful than late fall applications.
Biological
Controls: Five biocontrol agents are approved for release. Two of these, a flower feeding beetle and a stem weevil, are established in Oregon.
Oregon
Maps of Dalmatian Toadflax Distribution
Links:
USDA
Plants Database information on Dalmatian toadflax
GRIN
Database information on Dalmatian toadflax
Oregon Department
of Agriculture information on Dalmatian
toadflax
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