Difference between revisions of "Helenium autumnale"

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(Taxonomic Notes)
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===Phenology=== <!--Timing off flowering, fruiting, seed dispersal, and environmental triggers.  Cite PanFlora website if appropriate: http://www.gilnelson.com/PanFlora/ -->
 
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''H. autumnale'' has been observed to flower in September <ref name= "Panflora"> Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. www.gilnelson.com/PanFlora/ Accessed: 22 MAY 2018 </ref>, but has been seen to be flowering in the months of June through November. It has been seen to develop fruit in the months Junethrough November as well. <ref name= "Herbarium"/>  
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Generally, ''H. autumnale'' flowers from September until October.<ref name= "Weakley"/> It has been observed to flower in September <ref name= "Panflora"> Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. www.gilnelson.com/PanFlora/ Accessed: 22 MAY 2018 </ref>, but has been seen to be flowering in the months of June through November. It has been seen to develop fruit in the months June through November as well. <ref name= "Herbarium"/>  
 
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Revision as of 15:24, 17 May 2019

Common name: common sneezeweed

Helenium autumnale
Helenium autumnale AFP.jpg
Photo by the Atlas of Florida Plants Database
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicots
Order: Asterales
Family: Asteraceae
Genus: Helenium
Species: H. autumnale
Binomial name
Helenium autumnale
L.
HELE AUTU DIST.JPG
Natural range of Helenium autumnale from USDA NRCS Plants Database.

Taxonomic Notes

Synonyms: Helenium latifolium P. Miller, and Helenium parviflorum Nuttall; H. autumnale L. var. parviflorum (Nuttall) Fernald; H. autumnale L. var. autumnale

Description

Also known as the common sneezeweed, H. autumnale is a native perennial forb that is a member of the Asteraceae family. It grows yellow conspicuous flowers and brown inconspicuous fruit [1].

Distribution

H. autumnale can be found across the North American continent, from across the United States to most of Canada [1].

Ecology

Habitat

This species grows in a variety of communities, ranging from moist pastures to forests and woodlands. [2] More specifically, habitats range from shady and loamy sand in mesic hardwoods floodplains, sandy alluvial dikes, drainage ditches, pine flatwood depressions, wet woodlands, wet roadsides, moist soil of limestone bluffs, and other moist sandy loams. [3]

Phenology

Generally, H. autumnale flowers from September until October.[2] It has been observed to flower in September [4], but has been seen to be flowering in the months of June through November. It has been seen to develop fruit in the months June through November as well. [3]

Conservation and Management

Cultivation and restoration

Photo Gallery

References and notes

  1. 1.0 1.1 USDA Plants Database URL: https://plants.usda.gov/core/profile?symbol=HEAU
  2. 2.0 2.1 Weakley A. S.(2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC: University of North Carolina Herbarium.
  3. 3.0 3.1 Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2018. Collectors: Loran C. Anderson, Robert L. Lazor, Robert K. Godfrey, D. B. Ward, R. Kral, L. Redfeam, and J. Lazor. States and counties: Florida: Liberty, Jackson, Taylor, Wakulla, Montgomery, Franklin, Gadsden, Calhoun, Holmes, and Gulf. Georgia: Thomas.
  4. Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. www.gilnelson.com/PanFlora/ Accessed: 22 MAY 2018