''Cardamine diphylla'' (broadleaf toothwort, crinkle root, crinkle-root, crinkleroot, pepper root, twin-leaved toothwort, twoleaf toothwort, toothwort) is a plant native to

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

. ''Cardamine diphylla'' is a spring woodland plant that is found in most of eastern North America.

Description

A member of the mustard family, it is typified by a four petal flower which blooms in a cluster on a single stalk above a single pair of toothed stem leaves each divided into three broad leaflets. After flowering, narrow seedpods appear just below the flower cluster. It grows approximately 30 cm (12 in) tall.

Distribution

Its habitat ranges from Georgia north to Ontario and from the Atlantic to Wisconsin. It is found in moist woodlands usually in edge habitats and blooms from April to June.

Butterfly habitat

The West Virginia white butterfly (''Pieris virginiensis'') lays its eggs on this plant as well as ''C. laciniata''. The larvae also feed on this plant. As with ''

Pieris oleracea ''Pieris oleracea'', or more commonly known as the mustard white, is a butterfly in the family Pieridae native to a large part of Canada and the northeastern United States. The nearly all-white butterfly is often found in wooded areas or open pla ...

'', ''Pieris virginiensis'' mistakes

garlic mustard ''Alliaria petiolata'', or garlic mustard, is a biennial flowering plant in the mustard family (Brassicaceae). It is native to Europe, western and central Asia, north-western Africa, Morocco, Iberia and the British Isles, north to northern Sc ...

for its host plants, making eradication of it important for their continued survival. Garlic mustard also competes with the plants for space and nutrients.

Use by Native Americans

Medicinal

The ground root is mixed with

vinegar Vinegar is an aqueous solution of acetic acid and trace compounds that may include flavorings. Vinegar typically contains 5–8% acetic acid by volume. Usually, the acetic acid is produced by a double fermentation, converting simple sugars to et ...

by the

Algonquin people The Algonquin people are an Indigenous people who now live in Eastern Canada. They speak the Algonquin language, which is part of the Algonquian language family. Culturally and linguistically, they are closely related to the Odawa, Potawato ...

of Quebec and used as a relish. They also give an infusion to children to treat fevers, and use an infusion of the plant and

sweet flag ''Acorus calamus'' (also called sweet flag, sway or muskrat root, among many common names) is a species of flowering plant with psychoactive chemicals. It is a tall wetland monocot of the family Acoraceae, in the genus ''Acorus.'' Although us ...

root to treat heart disease. The

Cherokee The Cherokee (; chr, ᎠᏂᏴᏫᏯᎢ, translit=Aniyvwiyaʔi or Anigiduwagi, or chr, ᏣᎳᎩ, links=no, translit=Tsalagi) are one of the indigenous peoples of the Southeastern Woodlands of the United States. Prior to the 18th century, t ...

use a poultice of the root for headaches, chew the root for colds and gargle an infusion for sore throats. The

Lenape The Lenape (, , or Lenape , del, Lënapeyok) also called the Leni Lenape, Lenni Lenape and Delaware people, are an indigenous peoples of the Northeastern Woodlands, who live in the United States and Canada. Their historical territory includ ...

use the roots as a stomach medicine, and use an infusion of the roots combined with other plants as a treatment for scrofula and

venereal disease Sexually transmitted infections (STIs), also referred to as sexually transmitted diseases (STDs) and the older term venereal diseases, are infections that are spread by sexual activity, especially vaginal intercourse, anal sex, and oral se ...

. The Delaware Nation of Oklahoma use a compound containing the root as a stomach remedy, for scrofula, and for venereal disease. The

Iroquois The Iroquois ( or ), officially the Haudenosaunee ( meaning "people of the longhouse"), are an Iroquoian-speaking confederacy of First Nations peoples in northeast North America/ Turtle Island. They were known during the colonial years to ...

take an infusion of the whole plant to strengthen the breasts. They also chew the raw root for stomach gas, apply a poultice of roots to swellings, take a cold infusion of the plant for fever and for "summer complaint, drink a cold infusion of the roots for "when love is too strong", and use an infusion of the roots when "heart jumps and the head goes wrong." They also use a compound for chest pains. They also take an infusion of the plant at the beginning of tuberculosis. The Malecite use an infusion of the roots as a tonic, and chew green or dried roots for hoarseness. The Micmac use the root as a

sedative A sedative or tranquilliser is a substance that induces sedation by reducing irritability or excitement. They are CNS depressants and interact with brain activity causing its deceleration. Various kinds of sedatives can be distinguished, but t ...

, to clear the throat and for hoarseness, and use the root as a tonic.

Culinary

The

Abenaki The Abenaki (Abenaki: ''Wαpánahki'') are an Indigenous peoples of the Northeastern Woodlands of Canada and the United States. They are an Algonquian-speaking people and part of the Wabanaki Confederacy. The Eastern Abenaki language was predom ...

use it as a condiment. The Cherokee parboil and rinse the stems and leaves, add hot grease, salt & water & boiled them until they are soft as potherbs. They also use the leaves in salads, and smoke the plant. The

eat the roots raw with salt or boiled. The

Ojibwa The Ojibwe, Ojibwa, Chippewa, or Saulteaux are an Anishinaabe people in what is currently southern Canada, the northern Midwestern United States, and Northern Plains. According to the U.S. census, in the United States Ojibwe people are one of ...

mix the roots with salt, vinegar, or sugar and use them as a condiment.Arnason, Thor, Richard J. Hebda and Timothy Johns 1981 Use of Plants for Food and Medicine by Native Peoples of Eastern Canada. Canadian Journal of Botany 59(11):2189-2325 (p. 2207)

Notes

References

*Wood, Alphonso (1870) ''New American Botanist and Florist'', revised and edited by Oliver R Willis. American Book Company Publishers, 1889.

External links

USDA Plants Profile: ''Cardamine diphylla''Evergreen NPDB, Toothwort
{{Taxonbar, from=Q2938024 diphylla Ephemeral plants Flora of West Virginia Flora of the Great Lakes region (North America) Flora of the Eastern United States Butterfly food plants Plants used in Native American cuisine Plants used in traditional Native American medicine Flora of Alabama Flora of Connecticut Flora without expected TNC conservation status