There is considerable confusion between Cichorium endivia and Cichorium intybus.[4][5]
Cichorium endivia
There are two main varieties of cultivated C. endivia chicon:
Curly endive, or frisée (var. crispum). This type has narrow, green, curly outer leaves. It is sometimes called chicory in the United States and is called chicorée frisée in French. Further confusion results from the fact that frisée also refers to greens lightly wilted with oil.
Escarole, or broad-leaved endive (var. latifolia), has broad, pale green leaves and is less bitter than the other varieties. Varieties or names include broad-leaved Batavian endive, grumolo, scarola, and scarole. It is eaten like other greens, sauteed, chopped into soups and stews, or as part of a green salad.
^National Academies of Sciences, Engineering, and Medicine; Health and Medicine Division; Food and Nutrition Board; Committee to Review the Dietary Reference Intakes for Sodium and Potassium (2019). "Chapter 4: Potassium: Dietary Reference Intakes for Adequacy". In Oria, Maria; Harrison, Meghan; Stallings, Virginia A. (eds.). Dietary Reference Intakes for Sodium and Potassium. The National Academies Collection: Reports funded by National Institutes of Health. Washington, DC: National Academies Press (US). pp. 120–121. doi:10.17226/25353. ISBN978-0-309-48834-1. PMID30844154. Retrieved 2024-12-05.
^DuPont, M. S., Day, A. J., Bennett, R. N., Mellon, F. A., Kroon, P. A., Absorption of kaempferol from endive, a source of kaempferol-3-glucuronide, in humans, Eur J Clin Nutr 2004 Jun;58(6):947-54