burdock means: Roots that grow more than three feet in depth but are less than twelve inches wide. It is similar to carrots and its white flesh is slightly sweet. The large, soft green leaves and young shoots are mildly bitter. They make a great addition to salads. Burdock is a favorite ingredient in Japanese cuisine. They include it in all their mixed vegetable tempuras. (in Cooking Dictionary)

What else does burdock mean?

One of many plants in the genus Arctium The composite family includes edible roots, pink or purple flower heads and prickly bracts which form burs. (in Merlin Dictionary)