Knotweed (unknown species) (Fallopia sp.) on Dec 2, 2009
Submitter does not have a specimen
Description of specimen
Fairly substatial stand of approximately 8' tall knotweed. Watched the stand as it bloomed and now, 12/2/2008, red lefless stems.
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