Eutrochium maculatum

From Wikipedia, the free encyclopedia

Spotted joe-pyeweed
Flower Buds.JPG
Portage, Michigan
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Eutrochium
Species:
E. maculatum
Binomial name
Eutrochium maculatum
(L.)
Synonyms[1]
Synonymy

Eutrochium maculatum, spotted joe-pyeweed,[2] is a North American species of flowering plant in the sunflower 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]

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]

Varieties[]

[1][8]

Cultivars[]

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

  • (Atropurpureum Group) 'Orchard Dene' [10]
  • (Atropurpureum Group) 'Purple Bush' [11]
  • (Atropurpureum Group) 'Riesenschirm' [12]
Ottawa, Ontario

References[]

  1. ^ Jump up to: a b "Eutrochium maculatum (L.) E.E.Lamont". The Global Compositae Checklist (GCC) – via The Plant List.
  2. ^ "Eutrochium maculatum". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 14 January 2018.
  3. ^ Eutrochium maculatum, Natural Resources Canada
  4. ^ Jump up to: a b "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. ^ Jump up to: a b Lamont, Eric E. (2006). "Eutrochium maculatum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). 21. New York and Oxford – 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. ^ "Eupatorium maculatum (Atropurpureum Group) 'Orchard Dene'". RHS. Retrieved 23 June 2020.
  11. ^ "Eupatorium (Atropurpureum Group) 'Purple Bush'". RHS. Retrieved 23 June 2020.
  12. ^ "Eupatorium maculatum (Atroput]rpureum Group) 'Riesenschirm'". RHS. Retrieved 23 June 2020.



Stub icon

This Eupatorieae article is a stub. You can help Wikipedia by .

  • v
  • t
Retrieved from ""