Identificaciones de waddwatts

A patch of White Clover I found growing along the sidewalk. White Clover is immensely abundant in my town, singlehandedly the most common plant I stumble across, so I'm not really sure why it's taken me so long to get around to making an observation of it. Probably because they're not as attractive as a lot of flowers that grow around here, but they're a lot prettier up close than I gave them credit for.
I believe this to be White Clover because, well, it's obviously White Clover; what more do you want from me? :D

A very spiny thistle I found growing along the train track. I pricked myself a couple of times while trying to photograph it. I've walked by this thistle several times lately, so today I decided I'd finally make an observation of it.
I'm pretty confident that it's a Bull Thistle, due to it being heavily spined, and its deep magenta flowers, as opposed to the less prickly and paler flowered Field Thistle, which occupies the same range.