Slender Wild Rye

Elymus trachycaulus

General Status Rank: 
Secure
ELCODE: 
PMPOA2H0Q0
Common Name: 
Slender Wild Rye
Scientific Name: 
Elymus trachycaulus
Synonyms: 
Agropyron trachycaulum
Naming References: 
B003
Google image search
Taxonomy
Group: 
Vascular Plant
Kingdom: 
Plantae
Phylum: 
Magnoliophyta
Class: 
Monocotyledoneae
Order: 
Poales
Family: 
Poaceae
References: 
B036
General Biology

Longevity

Annual or perennial.
References: 
B003

Economic/Human Considerations

Species formed 28% of the seed mix applied in 1984 along the Enridge pipeline and increased to 43% in 1985. A major component of remedial seeding work for up to 1996. Presence of disease head smut (Ustilago bullata) on many sites.
References: 
A119
Habitat
Clay banks, roadside clearings. At Thaidene Nene National Park Reserve site, plants occurred on sandy beach, inside bank of Snowdrift River, dry/wet habitat; growing in association with Salix species and Poaceae species.
References: 
B003
Distribution

Ecozones

Taiga Cordillera, Taiga Plains, Taiga Shield, Boreal Cordillera
References: 
B003
H151

Distribution

40% of the NWT.
Score: 
G = 2
References: 
B003

Number of Occurrences

22 (B003); DAO-41; CAN-28 Canadian Museum of Nature records = CAN; Agriculture Canada, Ottawa = DAO; some duplication of records likely exists (H151). New record from Thaidene Nene National Park Reserve, Snowdrift River 7km south of Magpie Lake, on 25 July 2023; moderately common at site.
Score: 
DE
References: 
B003
H151

Area of Occupancy

Score: 
-
Threats

Threats

Score: 
C = M

Intrinsic Vulnerability

Score: 
-
General Status Rank
Rank: 
Secure
Status Rank Description: 
Regional distribution with medium number of occurrences and within several ecozones (H151).
S Rank: 
S5
Decision Process Description: 
Drafted as not entered by S. Carriere. Secure by E. Haber in 2003 (H151). Reviewed in 2010, no change.
Last Updated: 
February 21, 2024

References

Economic Status

  • Cody, W., J., MacInnes, K.L., Cayouette, J., Darbyshire, S. (2000) Alien and invasive native vascular plants along the Norman Wells pipeline, District of Mackenzie, Northwest Territories. Can. Field-Naturalist 114:126-137 - A119 Return

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 (2004) Personal Communication - email to S. Carriere on 30/03/2004 on subset 2 vascular plants (grass and sedge).. Carriere office email archive (printed version in GSR binder) - H151 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

NWT Known Subspecies

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 (2004) Personal Communication - email to S. Carriere on 30/03/2004 on subset 2 vascular plants (grass and sedge).. Carriere office email archive (printed version in GSR binder) - H151 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 (2004) Personal Communication - email to S. Carriere on 30/03/2004 on subset 2 vascular plants (grass and sedge).. Carriere office email archive (printed version in GSR binder) - H151 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