Invasive SpeciesMultiflora rose

Rosa multiflora
FOUND by brotherhoodofth...
2012-10-15
Cape Elizabeth
ID Questioned
Quality checked by gardenerguy
Peer reviewed by victorioussecret
Field Notes
Supporting Evidence
Photo of my evidence.
This photo shows what the leaves look like and how they are shaped. These types of leaves are called compound-pinnate leaves. Each stem has 5 to 9 leaflets, that have toothed edges and are pointed at the tip.
Photo of my evidence.
This picture shows a close up of the thorns that are on the plant. The thorns help identify this plant, when looking for it. Also shown is the brown arching stem. The stems of this plant are smooth, as shown in the picture.
Photo of my evidence.
This photo shows the red berries that are a trademark of the multiflora rosa. These berries, called rose hips, are seen only in the Fall months. Rose hips are about the size of peas.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Rosa multiflora
Common name:
Multiflora rose
Sampling method: 
Quadrat (user-placement)
Photo of our sampling method.
Place Studied
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Map this species
Latitude: 
N 43.593235 °
Longitude: 
W -70.231873 °
Observation Site Information
A photo of our study site.
Habitat: 
Upland - Forest
Trip Information
Name:
CEMS School Grounds 2012
Trip date: 
Mon, 2012-10-15 08:34
Town or city: 
Cape Elizabeth
Type of investigation: 
Species Survey
Ecosystem: 
Upland
Watershed: 
Presumpscot

Comments

i liked your pictures they were very clear and went well with the captions. my one complaint would be that you "think that you found it" it would have been nice if you knew for sure

Looking at the shape and placement of the rose hips (i.e. the red berries), it seems a little questionable that they are Multiflora Rose. While you have correctly identified them as coming from a rose plant, it is hard to tell whether or not they come from the Multiflora Rose specifically. You should try to find berries laid out in a rounder organization, a trait specific to Multiflora Rose. But great photo of the stipules.

...which rose is it?

You provided a good photo of the leaf, but unfortunately there's a thumb over the part of the leaf that would tell me what kind of rose this is! All roses have pinnately compound leaves, but they also have another important feature: at the base of the compound leaf, just above where it joins to the stem, are a pair of small structures called stipules. On some roses, the stipules are like green wings, and their shape varies from one rose to another. On multiflora rose, the stipules are very unique: they have fringed hairs that stick out to the sides. I wish that thumb would move!

You also provided a good photo of the fruits, but I can't be certain that those are multiflora fruits. To me, the fruit cluster looks too "flat". Multiflora rose fruit clusters are more narrow-and-long, rather than wide-and-flattopped.

Any chance you could return to the site and take a few more photos? The fringed stipule photo would be best.

Thank you for your comments. We went out today to take more pictures and discovered that the stems of the rose in question did have the stipules you mentioned. We will be posting these pictures shortly, and hope that you will comment further on our work. Thanks

Can't wait to see your new pictures! Send them using the link above the big "Comments" title that says "Make a photo correction, or send us a photo update."

Thank you for this helpful information. We have just updated the pictures, but might take a few days to load them.

wow! Nice photo :)

Cool stipule photo.