Horned Dandelion (North American Dandelion)

Taraxacum ceratophorum (Taracerum lacerum)

General Status Rank: 
Secure
ELCODE: 
PDAST930Y1
Common Name: 
Horned Dandelion (North American Dandelion)
Scientific Name: 
Taraxacum ceratophorum (Taracerum lacerum)
Synonyms: 
Taracerum lacerum
Taraxacum mackenziense
Naming References: 
B003
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Taxonomy
Group: 
Vascular Plant
Kingdom: 
Plantae
Phylum: 
Magnoliophyta
Class: 
Dicotyledoneae
Order: 
Asterales
Family: 
Asteraceae
References: 
B036
General Biology

Longevity

perennial
References: 
B003
Habitat
moist places, often on mineral soil near sea shore
References: 
B003
Distribution

Ecozones

Arctic Cordillera, Northern Arctic, Southern Arctic, Taiga Cordillera, Taiga Plains, Taiga Shield, Boreal Cordillera
References: 
B003

Distribution

0.84
Score: 
G
References: 
B003

Number of Occurrences

28
Score: 
C
References: 
B003

Area of Occupancy

Score: 
-
Threats

Threats

Score: 
C

Intrinsic Vulnerability

Score: 
-
General Status Rank
Rank: 
Secure
Status Rank Description: 
Some include this taxon with T officinale syn T. ambigens var fultius, T. angulatum, T. arctogenum, T. brachyceras, T. carthamopsis, T. coverum, T. dumetorum, T. eriophorum, T. eurylepium, T. groenlandicum, T. hyperboreum, T. integratiforme, T. integratum, T. lacerum, T. lateritium, T. longii, T. mackenziense, T. malteanum, T. maurolepium, T. microcerum, T. officinale ssp ceratophorum, T. ovinum, T. pellianum, T. pseudonorvegicum, T. umbriniforme, T. umbrinum, Leontodon ceratophorus; The majority of records are all of native variants now synonomized under the polymorphic cosmopolitan weedy species that is widespread throughout lower latitudes in Canada. The entity formerly recognized as T. lacerum is the most common native entity that is widespread throughout NT and has been documented in B003 as consisting of about 28 localities within most ecozones.
S Rank: 
S4
Decision Process Description: 
New Taxon because the native and exotic entities are now devided into 2 species: Taraxacum ceratophorum = native, and t officinale = exotic (SC 2009); Reviewed in 2015 by Marilyn Anions; no change
Last Updated: 
July 24, 2015

References

Ecozones

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return

Habitat

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return

Longevity

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return

Naming

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return

Number of Occurrences

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return

Range Extent

  • Porsild AE, and Cody WJ (1980) Vascular Plants of Continental Northwest Territories, Canada. National Museums of Canada RWED Library Call #QK203.N7P6http://ia601004.us.archive.org/22/items/vascularplantsof00pors/vascularplantsof00pors.pdf - B003 Return

Taxonomy

  • McJannet CL, Argus GW and Cody WJ (1995) Rare Vascular Plants in the Northwest Territories. Canadian Museum of Nature Syllogeus 73:1-104. RWED Library Call #QK86.C3M3 - B036 Return