Spanish needles are wonderful, native, wildflowers. I’ve been advocating them to people forever. Bidens alba is the botanical name for this wildflower. Another common name for Bidens alba is beggartick.
Just a few of these wildflowers, left to go wild, in your green space will create a mini-meadow and provide for pollinators that you may not realize you even had in, and around, your yard. The patch that I found was a small area right next to a busy highway. No one stopped to notice all the activity except for me.