Difference between revisions of "Conyza canadensis"
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Common name: Canadian horseweed | Common name: Canadian horseweed | ||
==Taxonomic notes== | ==Taxonomic notes== | ||
| − | Synonyms: ''Erigeron canadensis'' Linnaeus; '' | + | Synonyms: ''Erigeron canadensis'' Linnaeus; ''Leptilon canadense'' (Linnaeus) Britton; ''Erigeron pusillus'' Nuttall; ''Leptilon pusillum (Nuttall) Britton; ''Conyza parva'' Cronquist; ''Conyza canadensis'' var. ''glabrata'' (A. Gray) Cronquist; ''C. parva'' Cronquist; ''Erigeron canadensis'' var. ''pusillus'' (Nuttall) B. Boivin [http://efloras.org/florataxon.aspx?flora_id=1&taxon_id=200023708 The Flora of North America]. |
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| + | Varieties: ''Conyza canadensis'' (Linnaeus) Cronquist var. ''canadensis''; ''Conyza canadensis'' (Linnaeus) Cronquist var. ''pusilla'' (Nuttall) Cronquist | ||
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==Description== | ==Description== | ||
<!-- Basic life history facts such as annual/perrenial, monoecious/dioecious, root morphology, seed type, etc. --> | <!-- Basic life history facts such as annual/perrenial, monoecious/dioecious, root morphology, seed type, etc. --> | ||
Revision as of 12:41, 15 April 2019
| Conyza canadensis | |
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| Photo taken by Kevin Robertson | |
| Scientific classification | |
| Kingdom: | Plantae |
| Division: | Magnoliophyta - Flowering plants |
| Class: | Magnoliopsida - Dicotyledons |
| Order: | Asterales |
| Family: | Asteraceae ⁄ Compositae |
| Genus: | Conyza |
| Species: | C. canadensis |
| Binomial name | |
| Conyza canadensis (L.) Cronquist | |
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| Natural range of Conyza canadensis from USDA NRCS Plants Database. | |
Common name: Canadian horseweed
Contents
Taxonomic notes
Synonyms: Erigeron canadensis Linnaeus; Leptilon canadense (Linnaeus) Britton; Erigeron pusillus Nuttall; Leptilon pusillum (Nuttall) Britton; Conyza parva Cronquist; Conyza canadensis var. glabrata (A. Gray) Cronquist; C. parva Cronquist; Erigeron canadensis var. pusillus (Nuttall) B. Boivin The Flora of North America.
Varieties: Conyza canadensis (Linnaeus) Cronquist var. canadensis; Conyza canadensis (Linnaeus) Cronquist var. pusilla (Nuttall) Cronquist
Description
A description of Conyza canadensis is provided in The Flora of North America.
Distribution
Ecology
Phenology
C. canadensis has been observed to flower in June.[1]
Seed dispersal
This species is thought to be dispersed by wind. [2]
Seed bank and germination
C. canadensis was found in the seed bank of scrub, longleaf pine, and ecotone habitats in the western panhandle region of Florida. [3]
Pollination
The following Hymenoptera families and species were observed visiting flowers of Conyza canadensis at Archbold Biological Station. [4]
Andrenidae: Andrena fulvipennis
Apidae: Epeolus carolinus
Halictidae: Sphecodes heraclei
Leucospididae: Leucospis affinis
Pompilidae: Episyron conterminus posterus
Sphecidae: Anacrabro ocellatus, Cerceris blakei, Ectemnius rufipes ais, Microbembex monodonta, Pluto rufibasis, Tachysphex apicalis, T. similis
Vespidae: Pachodynerus erynnis, Parancistrocerus salcularis rufulus, Stenodynerus beameri, S. fundatiformis, S. histrionalis rufustus
Conservation and management
Cultivation and restoration
Photo Gallery
Conyza canadensis Photo by Kevin Robertson
Grady County, GA
References and notes
- ↑ 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: 8 DEC 2016
- ↑ Kirkman, L. Katherine. Unpublished database of seed dispersal mode of plants found in Coastal Plain longleaf pine-grasslands of the Jones Ecological Research Center, Georgia.
- ↑ Ruth, A. D., et al. 2008. Seed bank dynamics of sand pine scrub and longleaf pine flatwoods of the Gulf Coastal Plain (Florida). Ecological Restoration 26:19-21.
- ↑ Deyrup, M.A. and N.D. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.
