A few weeks ago I posted a couple of shots of a rather prickly plant we have in the backyard. In some places it grows in profusion, but I've only found one in our yard - it's now at a height of about 5', since it's the only specimen, so I haven't treated it as a weed. I had promised to post a shot when it bloomed - that day arrived today.
(60mm f14 1/15 sec ISO200)
(60mm f5 1/40 sec ISO200)