noun
dwarf bamboo (western Japan varieties)
Refers to certain small bamboo species, especially those common in western Japan. Often used in gardening and landscaping.
庭の隅に根笹が生い茂っている。
Dwarf bamboo is growing thickly in the corner of the garden.
笹 is a general term for small bamboo or bamboo grass, while 根笹 specifically refers to certain dwarf bamboo varieties found in western Japan.
Compound of 根 (ne, 'root') and 笹 (sasa, 'bamboo grass'), referring to a type of bamboo that spreads by rhizomes.