Okay, this blossom looks similar to Dandelions and also to Yellow King-Devil… but it’s tall with thin basal leaves, and branched stems. Here’s some botany talk: “The plumed pappus is longer than the achene.” An annual introduced from Europe.
Smooth Hawksbeard (Crepis capillaris)
Ooooo, I love it when you talk botany to us…..