I know that most people consider them weeds or worse, but I like dandelions. They're like tiny suns with their bright bursts of yellow petals. The young dandelion leaves can be quite tasty and very healthy, plus the plants figure in herbal medicine.
I spotted the first dandelions of the season on Elberon Place, just across the street from the Washington Park Lake where I'd been watching ducks bob on the water. Early, but not the earliest I've seen...two years ago, I found dandelions growing near Stuyvesant Plaza in January!