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Species
Information
- false brome (slender brome)
- Brachypodium
sylvaticum (Huds)
Beauv.
- USDA
Symbol: BRSY
- Oregon
Noxious Weed Designation: B
- Pictures
Identification:
Perennial grass; forms short "squatty" bunches. Stems hollow with broad, flat 1/4 to 1/3 inch wide lax leaves and a leaf sheath open to the base. Leaf color a bright green that often remains through fall and part of winter. Leaf margins and lower stems hairy; ligules membranous . Flowers born in a true spike that droops noticeably, and spikelets with short or no stalks. Native bromes have sheaths closed > 1/4 of their length, flowers are in open, branched panicles and spikelets are strongly stalked
Impacts:
Oregon is the North American epicenter of this introduced European grass. It can quickly become the dominant plant species in forest understories, demonstrating great shade and drought tolerance. It is able to grow in a wide variety of habitats and competes strongly for early season moisture. Its presence in commercial timberlands creates a perfect environment for rodents which damage tree seedlings. It can dominate oak savannah habitats and can be expected to severely restrict native oak regeneration. This weedy grass is a threat to natural areas and has the potential adversely impact commercial timber production.
Biological
Controls: No approved biological control agent is available.
Oregon
Maps of False Brome
Links:
USDA
Plants Database information on false brome
GRIN
Database information on false brome
Oregon Department
of Agriculture information on
false brome
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