There is no reference to Desert Pebble in the SSE database. There is a Pebble Bean offered by some seed companies but the listings I found did not say if they were pole or bush! One GW reference says it is a pole bean. Pebble Bean is a mix of shapes, colors and sizes.

Thanks for responding -

I've found a few references to the bean as Pebble bean too, so I guess the seller I bought them from added the "Desert" to their title. One of the many things that attracted me to it was the mix of colors it throws. I guess this will be an experiment!

See if this looks like your beans.

http://en.wikipedia.org/wiki/Tepary_bean

DarJones