OK, not about plants, but I figured people who life the Glendale and surrounding areas of the Valley of the Sun might be interested in this article about a very recent meteorite fall in that area. If you live there you may find a meteorite in your yard:
I sent it to a friend who lives in Glendale. He was going out to check his yard. I haven't heard back, so I'm guessing he didn't find any fragments. Thanks for posting this, Thijs.