Mile-a-minute weed
Polygonum perfoliatum
NOT FOUND by WiR22010-06-24
Cape Elizabeth
ID Confirmed
Quality checked by Bluesky
Peer reviewed by Bluesky
Field Notes
Data was collected in coastal park with mowed lawns and parking lots. The site was approximately 500 feet from the ocean. The day was hot and sunny, so our team worked in the shade. We had a near-by picnic table in a park.
Supporting Evidence
This plant is a vine, but the leaves are opposite not alternate.
There are no barbs on the underside of the leaves.
The mile a minute weed is a plant with triangular non glossy leaves but alternate but not a vine. This plant is a vine but has alternate leaves that are somewhat glossy.
Species Observation: Species Looked For
Did you find it?:
I think I did not find it
Scientific name:
Polygonum perfoliatumCommon name:
Mile-a-minute weed
Count of individuals:
Coverage:
Reproduction:
Sampling method:
Quadrat (user-placement)
Place Studied
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Latitude:
N 43.622940 °
Longitude:
W -70.211860 °
Observation Site Information
Name:
WiR2's visit to Fort Williams
Habitat:
Upland - Developed areas
Trip Information
Name:
Fort Williams
Trip date:
Thu, 2010-06-24 11:30
Town or city:
Cape Elizabeth
Type of investigation:
Species and Habitat Survey
Ecosystem:
Upland
Watershed:
Presumpscot
Sampling Method:
Quadrat (user-placement)
Nearest waterbody:
Habitat Observations
Species diversity:
18 different species
Evidence of vectors:
Paved road
Walking trail
People
Picnic table / pets
Tree canopy cover:
3/4 - Completely covered
Soil moisture:
Moist
Comments
Polygonum perfoliatum
I agree that you did not find Polygonum perfoliatum. Not all plants are so distinctive that you will "know them when you see them" ... but P. perfoliatum is very distinctive. I've looked at a lot of plants, but I have never seen a plant with such triangular leaves. So ... I think that with the observations skills you are developing, when you make another trip to look for this plant, you WILL know it when you see it!