Today I noticed a couple of strange looking dandelions in our backyard. Instead of individual stems for each brilliant yellow bloom several had grown together in one solid super stem. You could sort of feel the cluster of stems in these large “stems”.

One big stem, multiple blooms

Another large stemmed one…
There are plenty of “normal” dandelions nearby. Any botanists or agronomists or anybody who knows anything about these dandelions? I’ve never seen anything like this. Appreciate any comments or answers.