If you have trouble identifying the LBJs (Little Brown Jobs, most often sparrows) in birding, then hold on to your magnifier. It's time to count flower heads, ray florets and disc florets.
Not to mention: Are the leaves and stems covered with stiff hairs? Are the leaves lanceolate or oval with toothed margins or not?
It's autumn and here come the composites. The Asteraceae or Compositae family (commonly referred to as the aster, daisy, composite or sunflower family) are bodaciously blooming.
The family has more than 23,600 currently accepted species, spread across 1,620 genera in 13 subfamilies. At times I think half of them are yellow and blooming around the nature center.