Which of the following oilseed crops is NOT considered economically significant?

Peanuts, while they are indeed an important crop, are primarily classified as a legume rather than an oilseed. The economic significance of oilseed crops often focuses on their oil content and how they are utilized in food products, biofuels, and other industrial applications.

Canola, mustard seed, and safflower are all recognized for their high oil content and are cultivated specifically for oil extraction, making them significant in the agribusiness sector. They play important roles in both domestic and international markets, especially in terms of vegetable oil production. Peanuts, in contrast, are more valued for their protein content and are commonly consumed as snacks or used to make products like peanut butter rather than being primarily marketed as an oilseed crop. Thus, in the context of oilseed economic significance, peanuts stand apart, solidifying their classification as the correct answer to the question.