Master Gardener Clinic needs help with something a client brought us. This hard mass with roots and tendrils was found in a pot on the client's patio, where it got very little water. She has no idea what was planted in the pot before she "emptied" it and abandoned it. We cut it open, and it's white, solid and moist. We cut open one of the "pods" or "bulblets" and it looked the same, except for dark specks like little seeds. Can you help us with this? Thank you!