Crambe oil

Crambe oil is an inedible seed oil, extracted from the seeds of the "Crambe abyssinica", a multibranched annual plant that is native to the Ethiopian Highlands also known as Abyssinia. The oil has been shown to consist of 55-60% erucic acid. The Australian Farm Diversification Information Service writes:
Erucic acid is traditionally derived from older varieties of rapeseed. Crambe oil is considered to be a possible replacement for rapeseed oil in this capacity. The market for crambe oil is particularly developed in the United States.