You’re welcome! Appreciate for the confirmed ID. We’ve all been there Jim, some plants like these look alike yellow composites ( dandelion, hawkbeard, catsear, etc…) are hiding in plain site. Thanks to your excellent photos & information, this help tremendously. Laura

That does look like it! I should have known to look for Hypochaeris since I had already identified Common Catsear – Hypochaeris radicata. Thank you! This one has been driving me a little nuts because I’ve done so many searches and just not come up with it.

Brazilian cat’s ear. Click on images to enlarge. https://www.discoverlife.org/mp/20q?search=Hypochaeris+brasiliensis&mobile=1

Link for specimens collection. Click on images twice for macro. http://sernecportal.org/portal/taxa/index.php?taxon=163190&clid=3141

I’m not an expert of the sunflower family and wondering maybe the Brasilian cat’s ear (Hypochaeris chillensis)? Check out these included links. Again, I’m only speculating. Best wishes Jim! https://www.flickr.com/photos/35605280@N05/16735761923

An additional note is that the sessile leaves of this plant are somewhat like Senecio triangularis but the blooms which have no ray florets, are more like Senecio vulgaris. Hopefully someone will recognize this one, and put me out of my misery! Ha!