Jerusalem artichoke
Jerusalem artichoke (*Helianthus tuberosus*) is a species of sunflower native to North America, grown for its edible tubers.
Jerusalem artichoke (*Helianthus tuberosus*) is a species of sunflower native to North America, grown for its edible tubers. Also known as sunchoke, sunroot, and topinambur, the plant is cultivated in temperate regions as a root vegetable and is notable for its high inulin content. This perennial sunflower species is not a true artichoke and is not native to Jerusalem.
Description
Jerusalem artichoke is a tall perennial sunflower that produces yellow flowers and knobby edible tubers. It is cultivated as a vegetable crop and also grows wild in parts of North America.
Names and etymology
Despite its name, the plant has no known botanical connection to Jerusalem or to the globe artichoke. The name is commonly linked to a corruption of the Italian word *girasole*, meaning sunflower.
Cultivation and use
The tubers are eaten raw or cooked and are used in dishes such as soups, roasts, and pickles. The plant is also grown for animal feed and has industrial uses, including production of fructose and ethanol.
Nutritional and chemical characteristics
Jerusalem artichoke tubers are notable for their high inulin content, a carbohydrate that is not digested in the same way as starch. This gives them a distinctive nutritional profile compared with many other root vegetables.
Key facts
- Jerusalem artichoke is a sunflower species grown primarily for its edible underground tubers.
- The plant is native to North America and was cultivated by Indigenous peoples before spreading to Europe.
- Its tubers are valued as a vegetable and are rich in inulin.
- The plant is also used as forage and in some industrial applications.
Jerusalem artichoke is native to North America and occurs in parts of Canada; Canadian gardeners and growers cultivate it as a hardy edible tuber crop.
Frequently asked questions
What is a Jerusalem artichoke?
Is Jerusalem artichoke related to artichokes?
Where does Jerusalem artichoke come from?
What part of the plant is eaten?
Why is it called Jerusalem artichoke?
References
- Wikipedia — https://en.wikipedia.org/wiki/Jerusalem_artichokeSupports: Scientific name, common names, native range, and use as an edible tuber.
- Encyclopaedia Britannica — https://www.britannica.com/plant/Jerusalem-artichokeSupports: Species identity, family, native origin, edible tubers, and inulin content.
- Royal Horticultural Society — https://www.rhs.org.uk/vegetables/jerusalem-artichokes/grow-your-ownSupports: Cultivation, common names, North American origin, and relationship to globe artichoke.
- Ohio State University Extension — https://ohioline.osu.edu/factsheet/anr-0167Supports: Native range, perennial crop status, Indigenous cultivation, and industrial applications.
- McGill Office for Science and Society — https://www.mcgill.ca/oss/article/food-health/jerusalem-artichokesSupports: Clarification that it is not an artichoke and has nothing to do with Jerusalem; inulin content.
- Ohio State University Weed Guide — https://weedguide.cfaes.osu.edu/singlerecord.asp?id=1Supports: Native North American distribution and introduction to Europe in the early 1600s.