Ulmus americana

同根派生

North American deciduous tree (Ulmus americana) having double serrate leaves and winged fruits. It is grown chiefly as an ornamental shade tree but often dies from Dutch elm disease.
美洲榆：一種北美落葉樹（美洲榆），有雙齒葉和雙翼果，主要作爲觀賞性濃廕樹，但常患荷蘭榆樹病而壞死
Americana are featured in the exhibit.
展覽展出了關於美國（或美洲）的資料
Agave americana L. var. rnarginata Hort.
金邊龍舌蘭
Technology of Grafting Ulmus pumila var, pendula Rehd.
垂榆嫁接技術。
Americana reflects the influence of many immigrations.
美國文化反映出了許多移民的影響