Clear wind grass stem

On the yellow sandy ground of an island inside the blue dragon whale, Shen Cong Sheng smells clear wind grass stems and exposes fist-sized holes whose walls are smooth and round. Zeng Luo Zi identifies those holes as the effect of clear wind grass stem roots, and says an entire field must once have been planted there. Clear wind grass stem is a rank seven immortal material. ^{ch. 1890}

Clear wind grass stems are named among the immortal materials prepared on that island, together with cloud ladder leaf hearts and rooster iron, after explorers realize the deposits were real and had already been taken. ^{ch. 1891}