Vines and Climbers: What did I touch that did this to my arm?, 1 by cnswift

cnswift wrote:
Hi,

I'm baffled by this weird rash thing on my arm. It's hard to do it justice in a picture, especially trying to take the photo myself. I didn't scratch myself in any way; this just appeared. It wasn't raised or anything, just discolored, and then when I was in the sun it blistered a little. Gross! I had one on my ankle too that scarred several months ago. I have no clue. Any ideas? I posted it here in vines since I have several, but it could very well be some of the California native shrubs that I have too. Please help me, whatever it is I'd like to avoid it.

Thanks a bunch, Christina

PS: Vines in my yard: morning glory, trumpet vine, wisteria, passiflora, black eyed susan vine, jasmine (pink and white), carolina jessamine...I think that's all of them. The natives will be rough to identify by I can take some photos if it helps.