''Eryngium aquaticum'' is a species of flowering plant in the family

Apiaceae Apiaceae or Umbelliferae is a family of mostly aromatic flowering plants named after the type genus ''Apium'' and commonly known as the celery, carrot or parsley family, or simply as umbellifers. It is the 16th-largest family of flowering plants ...

known by the common name rattlesnakemaster,''Eryngium aquaticum''.
USDA Plants Profile. marsh rattlesnake master,''Eryngium aquaticum''.
NatureServe. corn-snakeroot, bitter snakeroot, and marsh eryngo.''Eryngium aquaticum''.
USDA NRCS Plant Guide. This plant is native to eastern North America. This biennial or perennial herb grows up to 2 meters tall. The ribbed, erect stem branches toward the top. There are alternately arranged leaves which are lance-shaped and toothed on the edges. The basal leaves may be up to 90 centimeters long by 9 wide. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

contains white to blue flower heads with spiny, blue-tinged

bract In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or of ...

s. In the wild this plant grows in wet soils, such as those by bogs,

marsh A marsh is a wetland that is dominated by herbaceous rather than woody plant species.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p Marshes can often be found at ...

es, and ditches. It tolerates saturated soils and periodic flooding. This plant had a number of medicinal uses for Native American groups. The

Cherokee people 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, th ...

used it for nausea.''Eryngium aquaticum''.
University of Michigan Ethnobotany. The

Choctaw people The Choctaw (in the Choctaw language, Chahta) are a Native American people originally based in the Southeastern Woodlands, in what is now Alabama and Mississippi. Their Choctaw language is a Western Muskogean language. Today, Choctaw people are ...

used it as a remedy for

snakebite A snakebite is an injury caused by the bite of a snake, especially a venomous snake. A common sign of a bite from a venomous snake is the presence of two puncture wounds from the animal's fangs. Sometimes venom injection from the bite may occu ...

and

gonorrhea Gonorrhea, colloquially known as the clap, is a sexually transmitted infection (STI) caused by the bacterium '' Neisseria gonorrhoeae''. Infection may involve the genitals, mouth, or rectum. Infected men may experience pain or burning with ...

, and the

Delaware people 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 inclu ...

used it for intestinal worms. Many groups made it into tea to treat gastrointestinal complaints. The

Koasati The Coushatta ( cku, Koasati, Kowassaati or Kowassa:ti) are a Muskogean-speaking Native American people now living primarily in the U.S. states of Louisiana, Oklahoma, and Texas. When first encountered by Europeans, they lived in the territor ...

attributed magical powers to the plant. This plant is used in

flower arranging Floral design or flower arrangement is the art of using plant materials and flowers to create an eye-catching and balanced composition or display. Evidence of refined floristry is found as far back as the culture of ancient Egypt. Professionally ...

and as an ornamental garden plant. However, most plants sold under the name ''E. aquaticum'' are actually specimens of ''

Eryngium yuccifolium ''Eryngium yuccifolium'', known as rattlesnake master, button eryngo, and button snake-root, is a perennial herb of the parsley family native to the tallgrass prairies of central and eastern North America. It grows from Minnesota east to Ohio an ...

''.''Eryngium aquaticum''.
Missouri Botanical Garden.

References

{{Taxonbar, from=Q5396287 aquaticum Plants used in traditional Native American medicine Flora of the Eastern United States Plants described in 1753 Taxa named by Carl Linnaeus