うすげくろもじ (薄毛黒文字)

Lindera sericea var. glabrata

Lindera sericea var. glabrata

Lindera sericea var. glabrata

わが国の本州、関東地方以西から四国・九州に分布しています。「けくろもじ(毛黒文字)」の変種で、山地に生え、高さは3メートルほどになります。葉は倒卵形から長楕円形で互生し、表面には短毛がなく、裏面ははじめ絹毛に被われます。葉脈は裏面に著しく隆起します。4月ごろ、葉の展開と同時に花序をだし、小さな黄緑色の花を咲かせます。花披片は6個、花梗や花柄には毛が生えます。 
クスノキ科クロモジ属の落葉低木で、学名は Lindera sericea var. glabrata。英名はありません。 
The "Usuge-kuromoji" (Lindera sericea var. glabrata) belongs to Lauraceae (the Laurel family). It is a small deciduous tree that is distributed from the Kanto region of Honshu westward to Shikoku and Kyushu in Japan. It is a variety of "Ke-kuromoji" and grows up to 3 m high in mountainous areas. The leaves are obovate to oblong and alternate, with no short hairs on the surface, and the underside is initially covered with silky hairs. The veins are markedly raised on the underside. Around April, when the leaves develop, an inflorescence is produced and small yellow-green flowers bloom. There are 6 perianth segments, and the peduncle and stipe are hairy. 
大阪府高槻市田能「高槻花しょうぶ園」にて、2006年04月26日撮影。 

Shu Suehiro
shu@botanic.jp