Calflora
Observation  Detail
Plant Name   Persicaria wallichii
Himalayan knotweed
Observer Domenic Bongio    PROFILE
Date 2014-06-30
Source:Caltrans
County Humboldt What Grows Here?
Coordinates 41.28366, -124.06321
LOCATION CLOSEUP
Elevation 9 meters
Location Southeast corner of the old Caltrans Orick Maintenance Yard (far back corner closest to Redwood Creek)
Notes Site treated in 2015, 2016, and 2017. Down to two stems about 1 foot tall in 2017. No stems detected in 2018 or 2019. Presumed eradicated.
Habitat Roadside / Waste area
Gross Area 13.4 Square Meters
# of Plants 1Phenology Vegetative
Calflora ID we2209
Added 2014-07-07 Plant Observation Entry
Location Quality HIGH (2)
ContextOther Plant Observations at this location
© 2014 Domenic Bongio     CC BY-NC 4.0
© 2014 Domenic Bongio     CC BY-NC 4.0
© 2014 Domenic Bongio     CC BY-NC 4.0
© 2014 Domenic Bongio     CC BY-NC 4.0
© 2014 Domenic Bongio     CC BY-NC 4.0