| widely cultivated American plant cultivated in tropical and warm regions; showy yellow flowers on stalks that bend over to the soil so that seed pods ripen underground | edible subterranean fungus of the genus Tuber |
| | pod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms |
| | a common European plant having edible tubers with the flavor of roasted chestnuts |
| | any of various highly prized edible subterranean fungi of the genus Tuber; grow naturally in southwestern Europe |