noun
water yam; winged yam; purple yam
Refers to the plant Dioscorea alata, a type of yam. The term is rare and usually written in kana.
See also: 大薯
沖縄ではデンショを使った料理がある。
In Okinawa, there are dishes that use water yam.
Synonym for water yam (Dioscorea alata), possibly more common or used in different contexts.
The origin is uncertain; the kanji 田薯 literally means 'field potato' and is likely a direct translation or ateji for the plant.