Purple Flowers

These are two purple flowers I took some photographs of.  The first is a Cat Claw Sensitive Briar.  These are wild and grow all over the north Texas area.  When you touch the leaves they will close.  I lined my shots up and turned the lights off.  I used a Canon MT-24EX flash unit to get the light.  When the lights off the only area illuminated where the areas the flash hit so it created a nice black background.

I have no idea what this second flower is.  But I thought it would make for some interesting photography.