noun
wild carrot; Queen Anne's lace
Refers to the plant Daucus carota, commonly known as wild carrot or Queen Anne's lace. The Japanese name literally means 'black carrot' but is used for the wild species.
道端にクロニンジンが咲いていた。
Wild carrot was blooming by the roadside.
人参 is the common cultivated carrot, while クロニンジン is the wild species.
Compound of 黒 (kuro, 'black') and 人参 (ninjin, 'carrot'), referring to the dark-colored root of the wild carrot. The exact origin of the name is uncertain.