Old World forked fern; Dicranopteris linearis
A specific species of fern native to tropical and subtropical regions of the Old World. The name is usually written in katakana as コシダ.
Dicranopteris linearis often grows on sunny slopes.
On this mountain, Old World forked ferns grow in clusters.
Katakana spelling is standard for this plant name; usually written in kana.
Kanji form using 羊歯 for 'fern'; rarely used in practice.
Alternate kanji form using 歯朶 for 'fern'; very rare.
The name コシダ likely derives from the plant's appearance or habitat, but the exact origin is uncertain.