I saw many instances of this plant in the Yosemite region of the Sierra, at between about 6,000 and 7,000 ft or so. I think because of the altitude, and because of the thorns, I can rule out Poison Oak. For some reason while out there that's what I thought it was.
Any thoughts on this so I can cancel that order for a 50 gallon drum of Tecnu? :)
These plants were all over the place and unavoidable at times.
On the other hand, I saw this one lower, at around 5,000 ft, and am pretty sure it -is- Poison Oak. Am I right?
And this one looks similar to the first series, but it has flowers.