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Pastinaca sativa
Also called Wild Parsnip, Poison Parsnip, Common Parsnip
Parsnip is a biennial root vegetable usually grown as an annual for its sweet, cream-colored taproot. Grow it in deep, loose soil and leave it in the ground after frost to sweeten.
The parsnip (Pastinaca sativa) is a root vegetable closely related to carrot and parsley, all belonging to the flowering plant family Apiaceae. It is a biennial plant usually grown as an annual. Its long taproot has light cream colored skin and flesh, and, left in the ground to mature, becomes sweeter in flavor after winter frosts. In its first growing season, the plant has a rosette of pinnate, mid-green leaves. If unharvested, it produces a flowering stem topped by an umbel of small yellow flowers in its second growing season, later producing pale brown, flat, winged seeds. By this time, the stem has become woody, and the taproot inedible.
The parsnip is native to Eurasia; it has been used as a vegetable since antiquity and was cultivated by the Romans, although some confusion exists between parsnips and carrots in the literature of the time.
The shoots and leaves of parsnip must be handled with care, as its sap contains furanocoumarins, phototoxic chemicals that cause blisters on the skin when it is exposed to sunlight, a condition known as phytophotodermatitis. It shares this property with many of its relatives in the carrot family. Symptoms include redness, burning, and blisters; afflicted areas can remain sensitive and discolored for up to two years. Reports of gardeners experiencing toxic symptoms after coming into contact with foliage have been made, but these have been small compared to the number of people who grow the crop. The problem is most likely to occur on a sunny day when gathering foliage or pulling up old plants that have gone to seed. The symptoms have mostly been mild to moderate. Risk can be reduced by wearing long pants and sleeves to avoid exposure, and avoiding sunlight after any suspected exposure.
If eyes are exposed to the sap it can cause blindness.
Parsnips resemble carrots and can be used in similar ways, but they have a sweeter taste, especially when cooked. They can be baked, boiled, pureed, roasted, fried, grilled, or steamed. When used in stews, soups, and casseroles, they give a rich flavour. In some cases, parsnips are boiled, and the solid portions are removed from the soup or stew, leaving behind a more subtle flavour than the whole root and starch to thicken the dish. Roast parsnip is considered an essential part of Christmas dinner in some parts of the English-speaking world and frequently features in the traditional Sunday roast. Parsnips can also be fried or thinly sliced and made into chips. They can be made into a wine with a taste similar to Madeira.
Text excerpted from the Wikipedia article Parsnip by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
