Malus spontanea; a species of wild apple tree
A specific species of wild apple tree native to East Asia. The name is primarily used in botanical or horticultural contexts.
Nokaitō is a type of wild apple that grows naturally in Japan as well.
Kanji form is rare and mainly encountered in botanical contexts; no priority for this spelling is specified.
The name ノカイトウ likely derives from 野 (no, 'field') + 海棠 (kaitō, 'crabapple' or 'flowering apple'), referring to a wild apple species. The exact historical derivation is uncertain.