Plant ID, please?

Plant ID, please?

These pretty little white flowers are popping up in lawns and flower beds just about everywhere I go at this time of year. Can someone tell me what they are?
The individual blossoms are, on average, about the size of a US quarter/twenty-five cent piece, or slightly larger.

Many thanks!








poison ivy vine

poison ivy vine

Seeds

Seeds

new stuff in my room.

new stuff in my room.

First Apartment…Tips, suggestions?

First Apartment…Tips, suggestions?

Transplanting Delays, Seedling Questions…

Transplanting Delays, Seedling Questions…

Our 2010 Garden

Our 2010 Garden