Knotweed (unknown species) (Fallopia sp.) on Jun 5, 2009
Submitter does not have a specimen
EDRR Status: Local expert notified
Description of specimen
Large vacant lot on east side of NW Expressway with several clumps of knotweed ranging in size from 5-6' diameter to >10' diameter.
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