Several Vein Sweetflag (Rat Root)

Acorus americanus (Acorus calamus)

General Status Rank: 
May Be At Risk
ELCODE: 
PMACO01010
Common Name: 
Several Vein Sweetflag (Rat Root)
Scientific Name: 
Acorus americanus (Acorus calamus)
Synonyms: 
Acorus calamus
Naming References: 
B036
W018
DD2
Google image search
Taxonomy
Group: 
Vascular Plant
Kingdom: 
Plantae
Phylum: 
Magnoliophyta
Class: 
Monocotyledoneae
Order: 
Acorales
Family: 
Acoraceae
References: 
B036
General Biology

Longevity

perennial
References: 
B003
Habitat
wetlands
References: 
B036
Distribution

Ecozones

Taiga Shield
References: 
B003
H150

Distribution

0.01
Score: 
E
References: 
B003

Number of Occurrences

Total 3; 1(B003); CAN-0; DAO-0 Canadian Museum of Nature records=CAN; Agriculture Canada, Ottawa = DAO; some duplication of records likely exists (H150).;2 sites previously unrecorded sites (2008) on the near Trudel Creek and on the Talton River
Score: 
A
References: 
B003
H150
H214

Historical Distribution

Possible introduction, disjunct
References: 
B036

Area of Occupancy

Score: 
-
Threats

Intrinsic Vulnerability

Score: 
-
General Status Rank
Rank: 
May Be At Risk
Status Rank Description: 
A single locality reported from along the Yellowknife Highway near Fort Rae in B003 but no specimens were seen in Ottawa herbaria (H150). 2 localities near Taltson River recorded in 2008.
S Rank: 
S2
Decision Process Description: 
Drafted undetermined by S. Carriere based on printed information only. Sensitive according to E. Haber in 2003 (H150). Modified to may be at risk by S. Carriere in 2004.; Reviewed in 2010, no change.; Reviewed in 2015 by Marilyn Anions; no change
Last Updated: 
June 25, 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
  • Erich Haber (2003) Personal Communication - e-mail to S. Carriere on 19/11/2003 on Subset 1 Vascular plants (Monocots except orchids). Carriere Office - e-mail archive (printed verision in GSR binders) - H150 Return

Habitat

  • 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

Historical Distribution

  • 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

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

  • 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
  • NatureServe: An online encyclopedia of life [web application]. (2001) Version 1.4 . Arlington, Virginia, USA: Association for Biodiversity Information.. Available: http://www.natureserve.org/. (Accessed: June 29, 2001 - W018 Return
  • Kartesz, J. T. (1999) Synthesis of the North American Flora. North Carolina Botanical Garden North Carolina Botanical Garden, University of North Carolina Version 1.0 RWED Office, Yellowknife; Order from http://ucjeps.berkeley.edu/meacham/synthesis - DD2 Return

NWT Known Subspecies

Erich Haber (2003) Personal Communication - e-mail to S. Carriere on 19/11/2003 on Subset 1 Vascular plants (Monocots except orchids). Carriere Office - e-mail archive (printed verision in GSR binders) - H150 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
  • Erich Haber (2003) Personal Communication - e-mail to S. Carriere on 19/11/2003 on Subset 1 Vascular plants (Monocots except orchids). Carriere Office - e-mail archive (printed verision in GSR binders) - H150 Return
  • Leslie Bol (RESCAN) and John Desjarlais (2008) e-mail RE:pics. sent to Rob Gau and Suzanne Carriere - Env. assessment results of Taltson River Hydro project. print copy in binder - H214 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