
When I posed the question to garden editor Kathy Huber, her first thought was Vetch. The Vetch I've seen out here in Katy, though, is a very low-growing ground cover with inconspicuous flowers. So I told her I thought not and remarked that it looked more like a purple version of the Red Prairie Clover I've seen blooming recently. Kathy did a little research and determined that TxDOT (the Texas Department of Transportation) had indeed seeded Purple Prairie Clover on some highways.
I had my camera with me today so I stopped on the way home and found a safe spot to take some pictures. From the parking lot where I took the picture at top, it was still a little hard to determine what it was. Once I got a closer view, though, it was clear that I had dismissed Kathy's ID too quickly: it was indeed Vetch! While I don't see that on the list of wildflowers planted by TxDOT, it certainly looked like an organized planting effort. I see that Vetch is used for erosion control and that would make sense, since this was on the sloped banks of the freeway.
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