“Borecole" is another name for which of the following vegetables?

Kale used to be known as ‘borecole’, and the word can still be seen, particularly in older gardening texts, which were published before the leafy vegetable became a popular ingredient in green smoothies.

The word ‘borecole’ comes from the Dutch word ’boerenkool’, which means ‘peasant cabbage’. Today’s word, kale, comes from the Northern Middle English word ‘cale’ and/or the Scots word ‘kail’, which were used when referring to a variety of cabbages. The ultimate origin is the Latin word ‘caulis’ (meaning cabbage).

Kale has been around a long time; it originated in the eastern Mediterranean and Asia Minor, where it was cultivated for food as early as 2000 BCE. Nevertheless, for much of the 20th century kale wasn’t used much in U.S. cuisine, except as a garnish. However, at the start of the 21st century, interest in kale as a "superfood" skyrocketed due to recognition of the powerhouse nutrition of the once-disdained ‘peasant cabbage’.

Kale and its closest relative, collards, are some of the most cold-hardy vegetables in existence. Kale is a cool season crop whose sweet flavor is enhanced after the plant is exposed to several hard frosts. Collards, on the other hand, thrive in the heat but can still withstand below-freezing temperatures.

Some varieties of kale are grown for their ornamental leaves which may be white, red, pink, lavender, blue or violet in the interior of the rosette. Ornamental kale is as edible as any other variety, although not always as palatable.