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Species
Conyza canadensis (L.) Cronq. (1943)
IUCN
NCBI
EOL Text
Canada
Origin: Exotic
Regularity: Regularly occurring
Currently: Unknown/Undetermined
Confidence: Confident
United States
Origin: Unknown/Undetermined
Regularity: Regularly occurring
Currently: Unknown/Undetermined
Confidence: Confident
Isotype for Erigeron canadensis var. glabratus A. Gray
Catalog Number: US 69201
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Preparation: Pressed specimen
Collector(s): F. J. Lindheimer
Year Collected: 1847
Locality: North of Llano River., Texas, United States, North America
- Isotype: Gray, A. 1850. Boston J. Nat. Hist. 6 (2): 220.
License | http://creativecommons.org/licenses/by/3.0/ |
Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
Source | http://collections.mnh.si.edu/search/botany/?irn=2083344 |
Rounded Global Status Rank: T4 - Apparently Secure
Reasons: Occurs throughout western North America.
Canada
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
United States
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
Horseweed is a very common plant that occurs in every county of Illinois (see Distribution Map). In black soil prairies, it may appear in dry disturbed areas, particularly near the margins of more developed areas, such as fields. It can also be found in dry disturbed areas of gravel prairies, clay prairies, hill prairies, clay banks along rivers, and meadows near woodlands. In more developed areas, Horseweed often appears in abandoned fields, pastures, fence rows, vacant lots, garbage dumps, areas along railroads and roadsides, or in gardens and lawns. This plant is more common in disturbed areas. It has become an adventive weed in Europe.
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | Copyright © 2002-2014 by Dr. John Hilty |
Source | http://www.illinoiswildflowers.info/weeds/plants/horseweed.htm |
Canada
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
United States
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Conyza+canadensis |
Moist deciduous forests and grasslands
Rounded Global Status Rank: T5 - Secure
"Karnataka: Mysore Tamil Nadu: Dindigul, Nilgiri, Theni"