形態(tài)常綠喬木,高20余米。樹(shù)冠尖塔形或圓錐形,老樹(shù)廣卵形、球形或鐘形,樹(shù)皮灰褐色。老樹(shù)或老枝上的葉為鱗狀交互對(duì)生;幼樹(shù)或幼枝上葉為刺狀,長(zhǎng)0.6~1.2厘米,3葉輪生,葉上面有兩條白色氣孔帶。雌雄異株,極少同株。雄球花黃色,花 (本文共 297 字 , 1 張圖 ) [閱讀本文] >>
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 形態(tài)常綠喬木,高20余米。樹(shù)冠尖塔形或圓錐形,老樹(shù)廣卵形、球形或鐘形,樹(shù)皮灰褐色。老樹(shù)或老枝上的葉為鱗狀交互對(duì)生;幼樹(shù)或幼枝上葉為刺狀,長(zhǎng)0.6~1.2厘米,3葉輪生,葉上面有兩條白色氣孔帶。雌雄異株,極少同株。雄球花黃色,花 (本文共 297 字 , 1 張圖 ) [閱讀本文] >>