Buxus

...An evergreen shrub of the Buxaceae family that grows relictly on limestone and serpentine ground from the Kanto region to Okinawa (illustration). The species is also distributed in Korea, China, and Taiwan, and its Chinese name is boxwood. It grows to a height of 1-3m and a trunk diameter of 10cm. The leaves are opposite, obovate, somewhat thick, and glossy. They are almost sessile and about 2cm long. In March and April, small pale yellow flowers grow in clusters in the leaf axils, with one female flower in the center and several male flowers around it. There are no petals, and the male flowers have four sepals and four stamens, while the female flowers have six sepals and one pistil. ...

*Some of the terminology that mentions "Buxus" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…関東～沖縄の石灰岩や蛇紋岩地に遺存的に生育するツゲ科の常緑低木（イラスト）。種としては朝鮮，中国，台湾にも分布し，中国名は黄楊（こうよう）。高さ1～3m，幹の径は10cmになる。葉は対生し，倒卵形でやや厚く，光沢がある。ほとんど無柄で長さ2cm内外。3～4月ころ，淡黄色の小さな花が，葉腋（ようえき）に束状となって群生し，中央に1個の雌花，周辺に数個の雄花がつく。花弁はなく，雄花には萼片とおしべが各4個，雌花には6個の萼片と1個のめしべがある。…

※「Buxus」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報