This is the first blooming plant I’ve found this spring (other than trees). It’s called Common Whitlow-grass. It’s actually not a grass – it’s in the Mustard Family and the latin name is Draba reptans. It’s very small – the plant is one or two inches tall, and each flower is less than 1/2 inch across.

Common Whitlow-grass is native to Wisconsin, and grows in dry, sandy, open prairies and hillsides. This small insect was visiting each of the flowers.