I saw this at an info station turn-out in the Big Horn Mts., E of Yellowstone, on our way to the park on the 20th. I'd never seen a red penstemon before and wondered if this was an escaped garden flower or was it wild? Turns out there are over 250 wild penstemons in N America! This one might be firecracker or Eaton's penstemon.
I think this is a duncecap larkspur. It looks similar to lupine from the road and it took me awhile to realize, hey, wait a minute, that isn't lupine...
I stumbled upon this white bog-orchid at a shaded pull-out area. In the Black Hills, we have a Northern bog orchid, but it's pale green.
I have yet to ID this flower, so if anyone knows or knows something similar, please let me know. It looks similar to the buckwheats (below).
The bracted lousewort was a flower I was hoping to see, like the Indian paintbrush.
This is American bistort, found here and there in YNP.
Lewis monkeyflower! The Black Hills has a yellow-colored monkeyflower. This flower wasn't real common.
The silky phacelia was abundant in the park. From the waterleaf family.
I believe this is Northern buckwheat. It was fairly common throughout the park.