Japanese knotweed
Fallopia japonica
FOUND by kjurdak2010-07-15
Winslow
ID Confirmed
Quality checked by kjurdak
Peer reviewed by mstafford
Field Notes
The temperature at 6:00pm is cooler than earlier today. We heard kids voices, traffic and birds. We noticed a sign that read: Caution: Poison Ivy! We used the quadrat vertically rather than horizontally on the ground.
Supporting Evidence
Leaves are large, 12 -14 cm long and 7 cm wide. Leaves are arranged in alternate pattern on a zig zag stem.
Leaves are simple, with smooth edges. They are oval with some that look heart-shaped. We noticed that something seemed to being enjoying this leaf.
This bushy plant has reddish stems with swollen joints where the leaves emerge. The plant is approximately 60 cm tall.
Species Observation: Species Looked For
Did you find it?:
I think I found it
Scientific name:
Fallopia japonicaCommon name:
Japanese knotweed
Count of individuals:
1-10
Coverage:
Less than 1/4 covered
Reproduction:
Sampling method:
Quadrat (user-placement)
Place Studied
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Latitude:
N 44.539250 °
Longitude:
W -69.629410 °
Observation Site Information
Name:
kjurdak's visit to Fort Halifax Park
Habitat:
Upland - Developed areas
Trip Information
Name:
Fort Halifax Park
Trip date:
Thu, 2010-07-15 18:00
Town or city:
Winslow
Type of investigation:
Species and Habitat Survey
Ecosystem:
Upland
Watershed:
Lower Kennebec
Sampling Method:
Quadrat (user-placement)
Nearest waterbody:
Kennebec River
Habitat Observations
Species diversity:
10 different species
Evidence of vectors:
Walking trail
People
Tree canopy cover:
Between 1/2 and 3/4
Soil moisture:
Moist
Comments
fascinating!
What is eating these leaves? Those grazing scars are not something I see frequently. Wow, if this is a place that is convenient for you to get back to frequently, it would be great to see if you could identify the grazing organism!
This looks like a pretty small plant. Were there other stands of F. japonica nearby? Or was it all alone?
Nice work.
gbh