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''Celtis laevigata'' is a medium-sized tree native to North America. Common names include Sugarberry, Southern Hackberry, or in the southern U.S. Sugar Hackberry or just Hackberry. Sugarberry is easily confused with Common Hackberry, (''C. occidentalis'') where the range overlaps. Sugarberry has narrower leaves which are smoother above. The species can also be distinguished by habitat: where the ranges overlap, Common Hackberry occurs primarily in upland areas, whereas Sugarberry occurs mainly in bottomland areas. Sugarberry's range extends from the Eastern United States west to Texas and south to northeastern Mexico.〔 It is also found on the island of Bermuda. ==Ecology== Sugarberry occurs primarily along streams and in moist soils on floodplains. Its fruit are eaten by birds, helping to disperse the seeds. The leaves are eaten by a number of insects, for example caterpillars of the Io moth (''Automeris io''). Sugarberry's leaf litter contains allelopathic chemicals that inhibit seed germination and growth in many other plant species.〔M.A.K. Lodhi, E.L. Rice. 1971. Allelopathic effects of Celtis laevigata. Bulletin of the Torrey Botanical Club. Vol. 98, No. 2, pg. 83-89.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Celtis laevigata」の詳細全文を読む スポンサード リンク
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