Ulmus americana
Ulmus americana
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Ulmus americanaLiên quan
Ulmus Ulmus americana Ulmus rubra Ulmus glabra Ulmus minor Ulmus chenmoui Ulmus pumila Ulmus davidiana Ulmus elongata Ulmus bergmannianaTài liệu tham khảo
WikiPedia: Ulmus americana http://www.ipni.org/ipni/idPlantNameSearch.do?id=3... http://www.natureserve.org/explorer/servlet/Nature... http://www.theplantlist.org/tpl1.1/record/kew-2450...