Semiarundinaria fastuosa, the Narihira bamboo,[1][2] Narihira cane or Narihiradake,[3][4] is a species of flowering plant in the grass family Poaceae, native to Japan.

Growing to 7 m (23 ft) tall by 2 m (7 ft) broad, it is a vigorous, evergreen bamboo with dark green cylindrical canes and dense tufts of lanceolate, glossy green leaves, up to 20 cm (8 in) long.

[5] In cultivation it is useful as an architectural plant or screen.

It has gained the Royal Horticultural Society's Award of Garden Merit.

[6][7] The specific epithet fastuosa is Latin for "proud".