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American Feverfew

Parthenium integrifolium L.

Comments

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As evidenced by the synonymy, Parthenium integrifolium as here circumscribed has been variously partitioned by other taxonomists. For the present, I see no justification for segregating species from, or for formal recognition of infraspecific taxa within P. integrifolium.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 16, 20, 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Description

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Perennials, 30–60(–100+) cm. Leaf blades ovate to lanceolate, 30–350+ × 20–120+ mm, margins usually crenate to serrate, sometimes coarsely toothed or somewhat lobed (then mostly toward bases), faces hispid to hirtellous or ± scabrous, gland-dotted. Heads radiate, borne in corymbiform to paniculiform arrays. Peduncles 1–8(–12+) mm. Phyllaries: outer 5(–6) lanceolate to broadly ovate, 3–5 mm, inner 5(–6) ± orbiculate, 4–6 mm. Pistillate florets 5(–6); corolla laminae ovate to oblong or orbiculate, 1–2+ mm. Disc florets 15–35+. Cypselae ± obovoid, 3–4+ mm; pappus-like enations 0 or 2(–4), erect to spreading, ± subulate or threadlike, fragile, 0.3–0.6+ mm. 2n = 72.
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copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 16, 20, 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Synonym

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Parthenium auriculatum Britton; P. hispidum Rafinesque; P. hispidum var. auriculatum (Britton) Rollins; P. integrifolium var. auriculatum (Britton) Cornelius ex Cronquist; P. integrifolium var. henryanum Mears; P. integrifolium var. hispidum (Rafinesque) Mears; P. integrifolium var. mabryanum Mears; P. radfordii Mears
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 16, 20, 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
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eFloras

Parthenium integrifolium

provided by wikipedia EN

Parthenium integrifolium is a species of flowering plant in the family Asteraceae known by the common names wild quinine, American feverfew, and eastern feverfew. It is native to the eastern and midwestern United States.[1][2]

Description

This plant is a perennial herb growing up to 1 metre (3.3 ft) high.[3] The glandular leaves are oval to lance-shaped and variable in size. They have serrated, toothed, or lobed edges. Some authorities recognize two varieties based on leaf shape: [4] var. integrifolium [5] and var. mabryanum. [6] The inflorescence is an array of several flower heads containing 15 or more whitish disc florets and 5 to 6 ray florets.[4][2] The flowers have a pleasant smell, which is mildly medicinal.[7]

Ecology

This plant grows in disturbed areas[2] as well as prairies, meadows, woodland edges, and hillsides. It does best in full sun, but does well enough in part shade. It grows in most any well-drained soil from sandy loam to good quality clay. It tolerates hot and cold climates and can be used as a garden plant in many areas.[7] It has a long blooming period of June into September; one of the longer blooming perennials. The winter inflorescences are attractive and make a good dried flower arrangement for indoors. It is sold by a good number of native plant nurseries.

The leaves of the plant contain tannins and the plant was used for medicinal and veterinary purposes by Native Americans. The Catawba people used it as a poultice to treat burns. The ashes were applied to horses with "sore backs".[7][8] The roots were made into a tea to treat dysentery.[7]

References

  1. ^ Parthenium integrifolium. NatureServe.
  2. ^ a b c Parthenium integrifolium. Flora of North America.
  3. ^ Denison, Edgar (2017). Missouri Wildflowers (Sixth ed.). Conservation Commission of the State of Missouri. p. 38. ISBN 978-1-887247-59-7.
  4. ^ a b "Wild Quinine, American Fever-few - Parthenium integrifolium". USWildflowers.
  5. ^ "Parthenium integrifolium var. integrifolium". iNaturalist.
  6. ^ "Parthenium integrifolium var. mabryanum". iNaturalist.
  7. ^ a b c d Parthenium integrifolium. USDA NRCS Plant Guide.
  8. ^ Parthenium integrifolium. University of Michigan Ethnobotany.

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Parthenium integrifolium: Brief Summary

provided by wikipedia EN

Parthenium integrifolium is a species of flowering plant in the family Asteraceae known by the common names wild quinine, American feverfew, and eastern feverfew. It is native to the eastern and midwestern United States.

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