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Help me identify the plant that gave me blisters.

Posted by DebbieChenier Toronto, ON (My Page) on
Wed, Jul 17, 13 at 11:15

Hi there, I lightly brushed up against this plant a few days ago, and in the spots where the spiny under leaf touched me, I developed blisters (if you zoom in, you'll see the prickly rib on the underside of the leaves). They're not itchy or painful at all (in fact, I didn't notice the scratches until the next day, when the blisters started to form where I had been scratched). Can't seem to find anyone who knows what this plant is. It was growing in a friend's side yard, which is very close to train tracks and was about 4 feet tall at the time. I have another photo, as well as photos of my blisters, if that helps. :) Thanks!

Follow-Up Postings:

RE: Help me identify the plant that gave me blisters.

Extra photo of the plant

RE: Help me identify the plant that gave me blisters.

Here's one of the blisters that formed on my calf. Not itchy or painful, but looks awful!

RE: Help me identify the plant that gave me blisters.

It looks like a Prickly Lettuce.

Here is a link that might be useful: Lactuca serriola

RE: Help me identify the plant that gave me blisters.

I was skeptical but after doing some reading it appears that some people can get contact dermatitis from members of the composite family including Lactuca sativa (lettuce) and L. serriola (prickly lettuce). Might be a latex protein allergy or something more ubiquitous that might be worth considering testing.

RE: Help me identify the plant that gave me blisters.

The blisters are appearing in exactly and only in the areas where I brushed up against the plant. I felt the quick little sting when I brushed up against it at the time (similar to brushing up against a thistle or rosebush - like small, innocuous scratches), which only developed into blisters the next day. I have no known allergies (plant, food, latex, etc). Though maybe I have a special sensitivity to whatever this plant is! Thanks for the help!! :)

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