Latin term (habere = to bear) in biology for the external appearance of an organism with the totality of all essential and typical visible characteristics of a human, animal or plant and their relations and proportions. At the Rebstock are this leaf. shoot, Vigor, wood, grape, berry, heyday. Sprouting time. Maturity date and earnings, In addition, for a Varieties determination also the resistance (Resistance) to diseases and pests (see Vine enemies ). These often significant features usually allow a very accurate determination of the family, genus or even species affiliation of a living being.