Kalmar "Celtis laevigata" tana nufin wani nau'in bishiyar da aka fi sani da itacen sugarberry ko kudancin hackberry. Nasa ne na dangin Cannabaceae kuma asalinsa ne a kudu maso gabashin Amurka. Kalmar "laeigata" sifa ce ta Latin ma'anar "smooth" ko "gyara," wanda zai iya nufin itace mai santsin haushi ko ganye.
