backroader wrote:
We have seen this bush a lot in our travels through south and west Texas. It is very difficult to photograph but I think I overcame that problem a little with this closeup.
Then I forget to post the photo....duh! The yellow blossom appears first and bees or other insects pollinate it. Then the purple blossom appears. This is according to the Ranger who guided our hike into the Hueco Tanks area of Texas near El Paso.