bulb in Wingdings is ♌︎◆︎●︎♌︎

A spheroidal body growing from a plant either above or belowthe ground (usually below), which is strictly a bud, consisting of acluster of partially developed leaves, and producing, as it grows, astem above, and roots below, as in the onion, tulip, etc. It differsfrom a corm in not being solid.