α. 1800s plantacrew, 1800s planticrü, 1800s plantiecrü, 1800s plantycruie, 1900s– planticru, 1900s– plantiecrö, 1900s– plantiecrue, 1900s– plantiekro, 1900s– plantikrø.
β. 1800s plantacruive, 1800s plantiecruive, 1800s plantycruive, 1900s– planticruive.
γ. 1800s– planticrub, 1900s– plantikrobb, 1900s– plantikrub, 2000s– plantie crub; Sc. National Dict. (at Plant) also records forms of the second element 1900s– -crob, 1900s– -krob.