Eutrochium maculatum

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Spotted joe-pyeweed
Flower Buds.JPG
Portage, Michigan
Status TNC G5.svg
Secure  (NatureServe)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Eutrochium
Species:
E. maculatum
Binomial name
Eutrochium maculatum
Synonyms [1]
Synonymy
  • Eupatorium maculatumL.
  • Eupatorium purpureum subsp. maculatum(L.) Á.Löve & D.Löve
  • Eupatorium purpureum var. maculatum (L.) Voss
  • Eupatorium trifoliatum var. maculatum(L.) Farw.
  • Eupatoriadelphus maculatus(L.) R.M.King & H.Rob.
  • Eupatorium maculatum f. eresinatumLepage
  • Eupatorium maculatum var. urticifoliumBarratt ex Alph.Wood
  • Eupatorium purpureum var. maculatum(L.) Darl.
  • Eupatoriadelphus maculatus var. bruneri(A.Gray) R.M.King & H.Rob., syn of var. bruneri
  • Eupatorium maculatum var. bruneri(A.Gray) Breitung, syn of var. bruneri
  • Eupatorium maculatum subsp. bruneri(A.Gray) G.W.Douglas, syn of var. bruneri
  • Eupatorium purpureum var. bruneri(A.Gray) B.L.Rob., syn of var. bruneri
  • Eupatorium trifoliatum var. bruneri(A.Gray) Farw., syn of var. bruneri
  • Eupatorium bruneri var. foliosum(Fernald) House, syn of var. foliosum
  • Eupatorium maculatum var. foliosum(Fernald) Wiegand, syn of var. foliosum
  • Eupatorium purpureum var. foliosumFernald, syn of var. foliosum
  • Eupatorium trifoliatum var. foliosum(Fernald) Farw., syn of var. foliosum

Eutrochium maculatum, the spotted joe-pyeweed, [2] is a North American species of flowering plant in the family Asteraceae. It is widespread through much of the United States and Canada. [3] It is the only species of the genus Eutrochium found west of the Great Plains. [4]

Contents

This herbaceous perennial sometimes grows as high as 2 m (6 ft 7 in). Stems are sometimes completely purple, sometimes green with purple spots. One plant can produce numerous rose-purple flower heads in late summer, each head with 8-22 disc flowers but no ray flowers. [5] The specific name maculatum, meaning spotted, refers to the purple spots on the stem. [6] [4]

Spotted joe-pyeweed thrives in marshes, rich fens and swamps. It also does well in man-made moist expanses such as ditches, seepage areas and wet fields. Above all else the plant flourishes in the non-shaded environments that are also abundant in wetlands. [7] [8]

It is a larval host to the Clymene moth, the eupatorium borer moth, the ruby tiger moth, and the three-lined flower moth. [9] The plant also attracts butterflies and honeybees. [10] [11]

Varieties

The following varieties are known: [1] [8]

Cultivars

The following cultivars are recipients of the Royal Horticultural Society's Award of Garden Merit (listed under the synonym Eupatorium maculatum):-

Ottawa, Ontario Spotted Joe-pye Weed.jpg
Ottawa, Ontario

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<i>Eutrochium fistulosum</i> Species of flowering plant

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<i>Eupatorium</i> Genus of plants

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<i>Geranium maculatum</i> Species of flowering plant in the family Geraniaceae

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<i>Eutrochium purpureum</i> Species of flowering plant

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<i>Eutrochium</i> Genus of flowering plants

Eutrochium is a North American genus of herbaceous flowering plants in the family Asteraceae. They are commonly referred to as Joe-Pye weeds. They are native to the United States and Canada, and have non-dissected foliage and pigmented flowers. The genus includes all the purple-flowering North American species of the genus Eupatorium as traditionally defined, and most are grown as ornamental plants, particularly in Europe and North America.

<i>Symphyotrichum lateriflorum</i> Species of flowering plant in the family Asteraceae native to central and eastern North America

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<i>Symphyotrichum pilosum</i> Species of flowering plant in the family Asteraceae native to central and eastern North America

Symphyotrichum pilosum is a perennial, herbaceous, flowering plant in the Asteraceae family native to central and eastern North America. It is commonly called hairy white oldfield aster, frost aster, white heath aster, heath aster, hairy aster, common old field aster, old field aster, or steelweed. It may reach 20 to 120 centimeters tall, and its flowers have white ray florets and yellow disk florets.

<i>Symphyotrichum lanceolatum</i> Species of flowering plant in the family Asteraceae native to much of North America

Symphyotrichum lanceolatum is a species of flowering plant in the family Asteraceae native to North America. Common names include panicled aster, lance-leaved aster, and white panicled aster. It is a perennial, herbaceous plant that may reach 1.5 meters tall or more, sometimes approaching 2 m. The lance-shaped leaves are generally hairless but may feel slightly rough to the touch on the top because of tiny bristles. The flowers grow in clusters and branch in panicles. They have 16–50 white ray florets that are up to 14 millimeters long and sometimes tinged pink or purple. The flower centers consist of disk florets that begin as yellow and become purple as they mature.

Empetrum eamesii, common name purple crowberry, is a plant native to eastern Canada and the northeastern United States. It has been reported from sand dunes, rocky outcrops, and alpine heath in Québec, Nova Scotia, Prince Edward Island, Maine, New Hampshire, Vermont, New York State, the Upper Peninsula of Michigan, Minnesota, Newfoundland & Labrador and St. Pierre & Miquelon.

<i>Eutrochium dubium</i> Species of flowering plant

Eutrochium dubium, also called coastal plain joe pye weed, is a North American flowering plant in the family Asteraceae. It is native to the eastern United States and Canada, primarily the Atlantic coastal plain from Georgia to Nova Scotia.

<i>Eutrochium steelei</i> Species of flowering plant

Eutrochium steelei, also known as Appalachian Joe-Pye weed or Steele's eupatorium, is a North American species of plants in the family Asteraceae. It is found only in the Appalachian Mountains of the eastern United States, in the States of Virginia, Kentucky, Tennessee, North Carolina, and Georgia.

<i>Calycomyza flavinotum</i> Species of fly

Calycomyza flavinotum is a species of leaf miner fly. It creates whitish blotch-shaped mines on the leaves of Ageratina altissima, Arctium minus, Eupatorium spp., Eutrochium maculatum, and Eutrochium purpureum, all flowering plants in the sunflower family.

References

  1. 1 2 "Eutrochium maculatum (L.) E.E.Lamont". The Global Compositae Checklist (GCC) via The Plant List. Note that this website has been superseded by World Flora Online
  2. "Eutrochium maculatum". Germplasm Resources Information Network . Agricultural Research Service, United States Department of Agriculture . Retrieved 14 January 2018.
  3. Eutrochium maculatum, Natural Resources Canada
  4. 1 2 "Eutrochium maculatum". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
  5. RHS A-Z encyclopedia of garden plants. United Kingdom: Dorling Kindersley. 2008. p. 1136. ISBN   978-1405332965.
  6. Dickinson, T.; Metsger, D.; Bull, J.; & Dickinson, R. (2004) ROM Field Guide to Wildflowers of Ontario. Toronto:Royal Ontario Museum, p. 164.
  7. "Eutrochium maculatum var. maculatum". New York Flora Association. 2005. Retrieved 2008-09-24.[ permanent dead link ]
  8. 1 2 Lamont, Eric E. (2006). "Eutrochium maculatum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 21. New York and Oxford: Oxford University Press via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  9. The Xerces Society (2016), Gardening for Butterflies: How You Can Attract and Protect Beautiful, Beneficial Insects, Timber Press.
  10. "Eutrochium maculatum - Plant Finder". www.missouribotanicalgarden.org. Retrieved 2021-11-30.
  11. "Eutrochium maculatum (Joe-Pye-weed, Queen of the Meadow, Spotted Joe-pye-weed, Spotted Trumpet Weed) | North Carolina Extension Gardener Plant Toolbox". plants.ces.ncsu.edu. Retrieved 2021-11-30.
  12. "Eupatorium maculatum (Atropurpureum Group) 'Orchard Dene'". RHS. Retrieved 23 June 2020.
  13. "Eupatorium (Atropurpureum Group) 'Purple Bush'". RHS. Retrieved 23 June 2020.
  14. "Eupatorium maculatum (Atroput]rpureum Group) 'Riesenschirm'". RHS. Retrieved 23 June 2020.

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