How do I tell what branch I was on when I stashed changes?

I'm aware of git stash show -p stash@{0} giving the log of changes saved into that stash entry, but I'd like to know what branch I was on when I made those changes. This would be very helpful for a number of scenarios:

cleaning up my stash stack
when returning to an old issue (and therefore old branch) for which I stashed the changes, thinking at the time I would be able to soon return to the issue and unstash, but ended up being pulled onto some other issue(s) for a very long time. I find myself thinking "I think I stashed changes for this, but am unsure and if so, which entry in the stash stack were they."

Solution

That is shown with git stash list. In this example "on dude" shows branch dude and "on master" shows branch master.

$ git stash list
stash@{0}: WIP on dude: 7eb87fe initial
stash@{1}: WIP on master: 7eb87fe initial

Also, it sounds like you are stashing when you abandon work temporarily. I have another workflow that I think is superior to stashing, I commit it and then reset it. That way the change is on the branch and if I ever abandon that branch the related code is discarded as well.

# do some work on dev
git co -b dev
# temporarily abandon it
git commit -a -m'commit instead of stash'
# do other work on master
git co master
# lets resume the old work
git co dev
# un stash
git reset HEAD^