Root vegetables, especially those such as carrots and parsnips, will naturally grow around or avoid obstacles in the soil such as small stones and other foreign objects to prevent damage to the developing root, resulting in a wide variety of different shapes. In the European Union, attempts to introduce legislation prohibiting the sale of misshapen fruit and vegetables were defeated. The proposed "uniform standardisation parameters" would have applied to straight bananas and curved cucumbers, as well as to more extreme cases such as carrots with multiple "legs", or fused fruit. The main concern for opponents of the proposed legislation was the ethical question of the wastage it would have generated if growers were forced to discard up to 20% of their crop, produce that was nutritionally identical to more regularly shaped specimens.