Kalmar “genus” a ilmin halitta tana nufin nau’in harajin da ke sama da nau’in jinsi da ƙasa da iyali, kuma “Phyllostachys” sunan jinsin tsiron bamboo ne.Saboda haka, kalmar “genus”. Phyllostachys" yana nufin rukunin tsire-tsire na bamboo waɗanda ke raba wasu halaye kuma an rarraba su tare a cikin tsarin kimiyya na rarrabuwar halittu. Waɗannan tsire-tsire ana siffanta su da tsayi, siraren ƙuƙuka (tsawon tushe) da kunkuntar ganye masu nuni da aka jera su cikin sifar zigzag na musamman tare da dunƙulewa. Akwai kusan nau'ikan tsire-tsire na bamboo kusan 70 a cikin halittar Phyllostachys, kuma asalinsu ne a Asiya, musamman Sin da Japan.