One of my hobbies is photographing flowers and adding their common & botanical names, but I am virtually never able to identify them, so I almost always need help.
This is a weed in my yard in Houston. I have apparently misidentified it. I believed it to be a Texas False Dandelion -- Pyrrhopappus carolinianus. But, the images in Google and Wikipedia show a different flower. My plant is 12-18" tall, with a very slender stalk and the blossoms are about 3/8" in diameter.
Here is the flower named Pyrrhopappus carolinianus in Wikipedia:
This plant and its blossom are MUCH larger than my plant.
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P.S. This board keeps promising to remove the restriction against my posting links in "a few days". It has been a few days and the restriction has not been lifted.