Bamboo grass - Bamboo grass

Japanese: タケニグサ - たけにぐさ
Bamboo grass - Bamboo grass

A perennial plant of the Papaveraceae family (APG classification: Papaveraceae). It grows 1-2 meters tall. When the stem is cut, a yellow juice comes out. The leaves are alternate, broadly ovate, palmately lobed, and have dense white hairs on the underside. From June to August, it produces large panicles that bloom with numerous white flowers. There are no petals, but two white sepals. There are numerous stamens and one pistil. The fruit is a flat, drooping capsule. It grows in sunny places, and is distributed from Honshu to Kyushu, as well as China and Taiwan. The plant contains alkaloids, which were once used to kill maggots. There are two theories about the name: the hollow stem resembles bamboo, and the bamboo becomes soft when boiled together with this species. It is also known as Sasayakigusa and Champagiku. In Europe it is a garden plant.

[Susumu Terabayashi February 17, 2020]

Bamboo grass
The leaves are broadly ovate and palmately lobed. From June to August, it produces large panicles and blooms many white flowers. Also known as Sasayakigusa and Champagiku ©Shogakukan Photo by Masatoshi Hirose ">

Bamboo grass

Bamboo shoot fruit
It has flat capsules that hang down. ©Seishohmaru ">

Bamboo shoot fruit


Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

ケシ科(APG分類:ケシ科)の多年草。高さ1~2メートル。茎を切ると黄色い汁が出る。葉は互生し、広卵形で掌状に中裂し、裏面に白毛を密生する。6~8月、大形の円錐(えんすい)花序をつくり、多数の白色花を開く。花弁はなく萼片(がくへん)は2枚で白色。雄しべは多数、雌しべは1本。果実は扁平(へんぺい)な蒴果(さくか)で垂れ下がる。日当りのよい所に生え、本州から九州、および中国、台湾に分布する。植物体にアルカロイドを含み、かつてはウジの殺虫に利用した。名は、中空の茎がタケに似るという説、本種とタケをいっしょに煮るとタケが柔らかくなるからという説がある。ほかにササヤキグサ、チャンパギクの異名がある。ヨーロッパでは園芸植物となっている。

[寺林 進 2020年2月17日]

タケニグサ
葉は広卵形で掌状に中裂。6~8月、大形の円錐花序をつくり、多数の白色花を開く。別名ササヤキグサ、チャンパギク©Shogakukan 撮影/広瀬雅敏">

タケニグサ

タケニグサの果実
扁平な蒴果で垂れ下がる©Seishohmaru">

タケニグサの果実


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