tuber
PLANT'S UNDERGROUND STORAGE ORGAN FORMED BY THE SWELLING OF AN UNDERGROUND STEM WHICH PRODUCES BUDS AND STORES PHOTOSYNTHATE METABOLITES/NUTRIENTS, FORMING A SEASONAL PERENNATING ORGAN, E.G. A POTATO
Tuberous root; Tubers; Tuberous; Culture of tubers; Root tuber; Stem tuber; Storage root; Tuberous crops
(n.) = tubérculo
Ex: The notation 633.4 is used to specify particular types of root crop, eg 633.49 tubers, which is itself extended to specify Potatoes at 633.491.