colewort

“Collards is a corruption of colewort — colewort is any non-heading cabbage,” said Dr. Harris, the author of “High on the Hog: A Culinary Journey From Africa to America.”

From New York Times ● Dec. 24, 2021

In these beds, along with the tobacco, they generally sow kale, colewort, and cabbage seed, &c., at the same time.

From The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. by P. L. Simmonds

These words are evidently of the same class, though not of the same species with bishopric, colewort, spillikin, gossip, mainswearer, &c.

From A Handbook of the English Language by R. G. (Robert Gordon) Latham

The aid of a Highland leech was procured, who probed the wound with a probe made out of a castock; i.e., the stalk of a colewort or cabbage.

From Rob Roy — Volume 01 by Sir Walter Scott

All the varieties of the colewort tribe, including cabbage, cauliflower, brussels-sprouts, broccoli, and curly greens, have been celebrated from very ancient times for their curative virtues in pulmonary complaints.

From Food Remedies Facts About Foods And Their Medicinal Uses by Florence Daniel