This is an annual weedy flower that crops up in this part of North America, and it has me stumped. Here's a couple of photos. The first is a clump of these flowers in some briars (wild blackberries). Note that they have three blue petals, and that makes me think trillium, but the leaves are blade-like. You can see buds near the flower in the center. The plant is from 1' - 1.5' high (30 cm - 46 cm).
Here's the second. In the background you can see some oxalis.
Any ideas what this is?
Here's the second. In the background you can see some oxalis.
Any ideas what this is?