Themeda triandra var. japonica; kangaroo grass variety
A specific variety of kangaroo grass native to Japan. Botanical term; often written in kana.
See also: メガルカヤ
Cymbopogon tortilis var. goeringii; lemongrass relative
A variety of grass closely related to lemongrass. Botanical term; often written in kana.
See also: オガルカヤ
thatching grass; thatching sedge
General term for grasses or sedges used in thatching. This broader sense is less common than the specific botanical senses.
In the past, karukaya was used as roofing material.
Karukaya is a plant of the grass family.
Okarukaya is also a type of karukaya.
Cymbopogon tortilis var. goeringii; a variety of grass related to lemongrass
Themeda triandra var. japonica; a variety of kangaroo grass
It is usually written in kana; this hiragana spelling is the most common written form.
Kanji spelling using 萱 (kaya, 'grass used for thatching'). Rare in modern usage.
Katakana spelling, sometimes used in botanical contexts or for emphasis.
Kanji spelling using 茅 (kaya, 'miscanthus reed'). Rare in modern usage.
Kanji spelling using 草 (kusa, 'grass'). Rare in modern usage.
Compound of 刈る (karu, 'to cut, mow') + 萱 (kaya, 'grass used for thatching'). The exact historical derivation is uncertain, but the word originally referred to grasses cut for thatching.