Knotweed (unknown species) (Fallopia sp.) on Sep 7, 2009
Originally reported as Giant Knotweed (Fallopia sachalinense)
Submitter does not have a specimen
EDRR Status: Local expert notified
Description of specimen
Several 3-4 ft. tall clumps of knotweed in bloom. Typical knotweed alternate leaf pattern and "zig-zag" stems. Plants kind of scruffy looking and yellow-green in color.
Commentary
None
Expert Reviewer
Tania Siemens
WISE Program Coordinator (Watershed and Invasive Species Education)
Oregon Sea Grant Extension
Oregon State University
tania.siemens@oregonstate.edu
541-914-0701