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

Basil, balm, borage, burnet, celery, chervil, colewort, coriander, corn-salad, cresses, endive, French fennel, lettuce, mint, mustard, nasturtiums, nettle-tops, parsley, pennyroyal, radishes, rape, sage, sorrel, spinage, tarragon, and water-cresses.

From The Cook and Housekeeper's Complete and Universal Dictionary; Including a System of Modern Cookery, in all Its Various Branches, Adapted to the Use of Private Families by Mary Eaton

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

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

His remedies were principally extracted from herbs; and colewort, or cabbage, was his favourite cure38.

From History of Roman Literature from its Earliest Period to the Augustan Age. Volume II by John Dunlop