Stemless Thistle (Onopordum acaulon), hands down the most memorable plant of our trip to Denver.
I REALLY want to grow this one in my own garden and am now looking for some seeds to purchase.* I have a soft spot for thistles, so much so that I won’t pull the wild growing ones when they are seedlings, only to suffer the consequences later.
* Some places have declared this plant an invasive pest. Worth looking into before adding it to your garden.