Cowhorn

From Seed Savers Exchange, Heritage Farm. Late-season. Fingerling tubers with pointed tips, dark-purple skin and dry, mealy, white flesh. Good storage. Excellent resistant to common scab and late blight. Cowhorn is also known under the synonyms Purple Cowhorn and Seneca Cowhorn [but allegedly not the same as Seneca Horn]. Though listed as a fingerling in most databases, its name comes from its general appearance. Maturity is mid-to-late and it is low yielding. It is a heritage variety with uncertain origins. It has been grown in New York state since before 1853. There is some speculation that it might have been developed in Vermont. There is further speculation that it might be identical to La Crotte d'Ours (Bear Poop), a Canadian heritage variety, thought to have roots to Scotland. Reported to have high levels of Glycoalkaloids (TGA).