Chikarashiba - Chikarashiba

Japanese: チカラシバ - ちからしば
Chikarashiba - Chikarashiba

A perennial grass of the family Poaceae (APG classification: Poaceae). The rhizome is well developed and strong, the culm is clumped, and is 30-80 cm tall. The leaves are linear and 7-8 mm wide. From August to November, dark purple, cylindrical panicles are produced at the top of the culm. The spikelets are about 7 mm long and contain two florets. The branches of the sterile inflorescence fuse at the base, transitioning into a spikelet stalk 2-3 mm long that encases several spikelets, and when mature, the spikelets fall off the main axis of the spike. It commonly grows on roadsides and grasslands, and is distributed from Hokkaido to Okinawa, as well as China, Malaysia, and Polynesia. The name "chikarashiba" comes from the fact that it grows into a large stub with strong roots that require a lot of force to pull out. It grows on rocky coasts in warm regions, and is distinguished as a different species, "shimachikarashiba," with leaves only 1 mm wide.

[Jianchang Xu August 20, 2019]

Power Shiba
It commonly grows on roadsides and in grasslands, and produces dark purple, cylindrical panicles from August to November. ©Shogakukan ">

Power Shiba

Shiba Inu (specimen drawing)
©Kanzo Otawa ">

Shiba Inu (specimen drawing)


Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

イネ科(APG分類:イネ科)の多年草。根茎は発達して強く、稈(かん)は株立ちし、高さ30~80センチメートル。葉は線形で、幅7~8ミリメートル。8~11月、稈頂に暗紫色で円柱状の円錐(えんすい)花序をつける。小穂は長さ約7ミリメートル、小花が2個ある。不稔(ふねん)性の花序の分枝は基部で癒合し、長さ2~3ミリメートルの小穂柄に移行して数個の小穂を包み、成熟すると小穂とともに花穂の主軸から脱落する。道端、草原に普通に生え、北海道から沖縄、および中国、マレーシア、ポリネシアに分布する。チカラシバの名は、大きな株となって根が強く張り、引き抜くのに力を要することによる。暖地の海岸の岩地に生え、葉幅が1ミリメートルしかないのは別種シマチカラシバとして区別する。

[許 建 昌 2019年8月20日]

チカラシバ
道端や草原に普通に生え、8~11月、暗紫色で円柱状の円錐花序をつける©Shogakukan">

チカラシバ

チカラシバ〔標本画〕
©大多和鐘三">

チカラシバ〔標本画〕


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