Radish, Turnip & beet

choi

Mark Bittman, Cold-Proof Your Salad. New York Times, Nov 28, 2012.
http://www.nytimes.com/2012/11/2 ... roof-any-salad.html

Note:
(a) eggplant
http://en.wikipedia.org/wiki/Eggplant
("The plant is native to the Indian Subcontinent. It has been cultivated in southern and eastern Asia since prehistory, but appears to have become known to the Western world no earlier than circa 1500. The first known written record of the plant is found in Qí mín yào shù 齊民要術 [by 賈思勰], an ancient Chinese agricultural treatise completed in 544")
(b) radish
http://en.wikipedia.org/wiki/Radish
(The radish (Raphanus sativus) is an edible root vegetable of the Brassicaceae family that was domesticated in Europe, in pre-Roman times)

(c) turnip
http://en.wikipedia.org/wiki/Turnip
(Brassica rapa subsp. rapa; in the family Brassicaceae; section 3 Origin: The turnip was a well-established crop in Hellenistic and Roman times)

Compare daikon
http://en.wikipedia.org/wiki/Daikon
(大根 in Japanese, 白萝卜 in Chinese; Raphanus sativus var. longipinnatus; in the family Brassicaceae)

(d) beet
http://en.wikipedia.org/wiki/Beet
(Beta vulgaris; in the Family Amaranthaceae; section 1 History: The plant was probably domesticated somewhere along the Mediterranean, whence it was later spread to Babylonia by the 8th century BC and as far east as China by 850 AD)
(e) kale
http://en.wikipedia.org/wiki/Kale
(Brassica oleracea Acephala Group; section 3 Origins: Until the end of the Middle Ages, kale was one of the most common green vegetables in all of Europe)
(f) collard greens
http://en.wikipedia.org/wiki/Collard_greens
(Collard greens is the American English term for various loose-leafed cultivars of Brassica oleracea (Acephala Group), the same species as cabbage and broccoli)
(g) chard
http://en.wikipedia.org/wiki/Chard
(Beta vulgaris subsp. cicla)

You may recall beet is Beta vulgaris.