Bunch

bunch, or cluster, the viticultural term for that part of the grapevine comprising bunchstem and berries. Grappe is the French term. Before the berries set, each berry position is occupied by a flower; a bunch develops from the inflorescence of the vine once the berries have set. In the grapevine the inflorescence grows at the node on the side of the stem opposite to a leaf, an unusual position within the plant kingdom. It is closely related to a tendril, both deriving from the same embryonic organ, the anlage. Depending on the time of development, anlagen produce bunches, tendrils, or second crop.