Know your Turnips

The turnip, Brassica rapa var. rapa, is a root vegetable commonly grown in temperate climates worldwide for its white, bulbous taproot.
Small, tender varieties are grown for human consumption, while larger varieties are grown as feed for livestock.

Know your Turnips - Common names

The turnip is also known as white turnip, neeps, tourn, rapes. In France it is navet, also known as rave, bulbe de racine ; du grec ραπυς, ραπυος : rave.

The most common type of turnip is mostly white-skinned apart from the upper 1–6 centimeters, which protrude above the ground and are purple, red, or greenish wherever sunlight has fallen.
This above-ground part develops from stem tissue, but is fused with the root. The interior flesh is entirely white.
The entire root is roughly conical, but can be occasionally tomato-shaped, about 5–20 centimeters in diameter, and lacks side roots.
The taproot (the normal root below the swollen storage root) is thin and 10 centimeters or more in length; it is trimmed off before marketing.
The leaves grow directly from the above-ground shoulder of the root, with little or no visible crown or neck (as found in swedes).

The turnip was a well-established crop in Hellenistic and Roman times, which leads to the assumption that it was brought into cultivation earlier.
But there are almost no archeological records available to help determine its earlier history and domestication.
Wild forms of the hot turnip and its relatives the mustards and radish are found over west Asia and Europe, suggesting that their domestication took place somewhere in that area.

Turnip leaves are sometimes eaten as "turnip tops" ("turnip greens" in USA), and they resemble mustard greens in flavour.
Turnip greens are a common side dish in south-eastern US cooking, primarily during late autumn and winter.
Smaller leaves are preferred; however, any bitter taste of larger leaves can be reduced by pouring off the water from initial boiling and replacing it with fresh water.

Varieties specifically grown for the leaves resemble mustard greens more than those grown for the roots, with small or no storage roots.
Varieties of B. rapa that have been developed only for use as leaves are called Chinese cabbage.
Both leaves and root have a pungent flavour similar to raw cabbage or radishes that becomes mild after cooking.
Turnip roots weigh up to about 1 kilogram, although they can be harvested when smaller.
Size is partly a function of variety and partly a function of the length of time that the turnip has grown.
Most very small turnips (also called baby turnips) are specialty varieties. These are only available when freshly harvested and do not keep well.
Most baby turnips can be eaten whole, including their leaves.
Baby turnips come in yellow-, orange-, and red-fleshed varieties as well as white-fleshed. Their flavour is mild, so they can be eaten raw in salads like radishes.

The turnip's root is high only in vitamin C.
The green leaves of the turnip top ("turnip greens") are a good source of vitamin A, folate, vitamin C, vitamin K and calcium.
Turnip greens are high in lutein (8.5 mg / 100g).

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