栲属(苦木栲属) Castanopsis (D.Don) Spach 常绿乔木,有顶芽,芽鳞多数。叶常2列互生,全缘或有锯齿,革质。雄花序直立,花被5~6裂;雌花单生或2~5生于总苞内,子房3室。总苞球形,稀杯状,开裂,稀不裂,全包坚果,外部具刺,稀为瘤状或鳞状;坚果1~3,当年或第二年成熟。约130种,分布于热带和亚热带地区。我国约70种,主要分布于长江以南温暖地区,多数为南方常绿阔叶林的建群种。是划分亚热带和温带的标志树种。
栲属是我国热带、亚热带重要森林植物。
Castanopsis is a genus of important forest plant in tropical and subtropical regions of China.
栲属植物现代多样化中心在马来西亚和中南半岛。
The Indo-Chinese Peninsula and Malaysia may be considered as two modern centers of diversity of this genus .
中国栲属植物最丰富的地区是滇黔桂地区(29 种) 。
The floristic region of Dian (Yunnan) -Qian (Guizhou )-Gui (Guangxi) has the highest Castanopsis species diversity in China, with 29 species .
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