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1.Either of two wild, freshwater ducks( Anas americana of North America or A. penelope of Europe) having a grayish or brownish back and a white belly and wing coverts. The European widgeon has a reddish-brown head and creamy crown, and the American widgeon has a shiny white crown.
野鸭,赤颈鸭两种淡水野鸭(北美的葡萄胸鸭或欧洲的赤颈鸭),背部呈灰色或褐色,腹部和覆羽的羽毛为白色。欧洲的野鸭头部为红褐色,奶油色冠,美洲的野鸭顶部亮白色收藏指正
2.Detail of young leaves and growing point; many leaves reduced to bare midrib or narrow green corrugated residue of lamina; youngest leaves and growing point brown and dead; large green stipular lamina around crown.
缺锰甘蓝的“鞭尾症:关键在于嫩叶和生长点,许多叶片露出中脉或缩小成绿色波状的薄层残留,心叶和生长点变褐并死亡,顶部周围有大量绿色长有托叶的叶片。收藏指正
3.small slow-growing pine of western United States similar to the bristlecone pine; chocolate brown bark in plates and short needles in bunches of 5; crown conic but becoming rough and twisted; oldest plant in the world growing to 5000 years in cold semi-desert mountain tops.
美西部小型松树,类似狐尾松,生长缓慢;巧克力色鳞状树皮,五针一束短叶;圆锥树冠但坚硬和扭曲;五千年前已存在于半沙漠的山顶地区。收藏指正
4.tall California pine with long needles in bunches of 3, a dense crown, and dark brown deeply fissured bark.
加州一种高大的松树,三针一束长针叶,深裂纹黑褐色树皮。收藏指正
5.medium-sized larch of Canada and northern United States including Alaska having a broad conic crown and rust-brown scaly bark.
加拿大和美国北部(包括阿拉斯加在内)中型落叶松属植物,宽大的圆锥树冠,黄褐色鳞状树皮。收藏指正
6.small juniper found east of Rocky Mountains having a conic crown, brown bark that peels in shreds, and small sharp needles.
落基山脉东部的一种小型桧柏,具有圆锥形树冠,褐色片状树皮和小型尖针。收藏指正
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