Invasive SpeciesAsian bittersweet

Celastrus orbiculatus
FOUND by 2018MWO6
ID Questioned
Quality checked by Stephen
Peer reviewed by
Field Notes
We examined the site for Oriental Bittersweet, we located it when we found green, alternate leaves growing on a vine. The leaves were slightly serrated with yellow skinned berries.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
We believe we found it because the plant we found shared the exact same characteristics as Asian Bittersweet. For example, the plant was green, slightly serrated and had a pointed flat oval margin.
Photo of my evidence.
A second piece of evidence we found to prove that we found Asian Bittersweet was that the plant was a vine growing from the bottom going up a tree. Also the leafs tended to have an alternate pattern which means the leafs were growing side to side, with a slight space in between each leaf going up the plant itself.
Photo of my evidence.
Lastly, a third piece of evidence is that it was growing in a site where oriental bittersweet usually is found, in a grassy field like area.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Celastrus orbiculatus
Common name:
Asian bittersweet
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 43.671311 °
W -70.350000 °
Observation Site Information
A photo of our study site.
Upland - Field
Trip Information
Westbrook High School Oct 2018
Trip date: 
Mon, 2018-10-15 10:08
Town or city: 
Type of investigation: 
Species Survey


Great work. The leaves on your plant had long pointed tips. It is possible that this was actually the native American bittersweet, which would be really cool. It is hard to confirm the identification without the berries.

Hi VS team -

We have inputted the latitude and longitude (correctly, I think) at least twice but somehow the website changes the coordinates. Maybe you can fix it on your end. These are the coordinates that we put in:
Latitude: 43.67131111
Longitude: 70.35000000


2018MWO6 and teacher

Awesome! Thanks 2018MWO6 and teacher :) You are back on track.

this is a very nice report and is extremely detailed

Hi 2018MWO6,

Your observation is out to sea! Please comment below with the correct coordinates and we'll get you back to shore.

-The VS Team