Parent Layer: Plants and Lichens

Name: Other Rare Species

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Description: Locations of globally rare plants and lichens(ranked G1 or G2 by Natureserve) in the Northwest Territories that are also ranked May Be at Risk by the NWT General Status Ranking program. Includes Drummond bluebell, Raup's willow, Banks Island alkali grass, and arctic orangebush lichen. Note that hairy braya (Braya pilosa) and Nahanni Aster (Symphotrichum nahanniense) are also ranked G1 but are not shown because they have been assessed as a Species at Risk in NWT and/or Canada and therefore have their own range maps. Developed for ENR/EC joint Species at Risk in the NWT booklet. Locations updated November 22, 2013 by Joanna Wilson. Shapefile modified to remove Nahanni Aster on February 19, 2015. One possible site for Mackenzie hairgrass (species identification requires verification) was added by Joanna Wilson on December 1, 2015. Four additional sites for Drummond Bluebell were added in November 2019.In January 2024, Mackenzie Hairgrass was removed from the dataset and points for Arctic orangebush lichen were addedby Joanna Wilson and Bonnie Fournier (GNWT ECC).DRUMMOND BLUEBELL (Mertensia drummondii) locations from: 1. Porsild AE, and Cody WJ . 1980 . Vascular Plants of Continental Northwest Territories, Canada. 2. McJannet CL, Argus GW and Cody WJ . 1995 . Rare Vascular Plants in the Northwest Territories. 3. Cody et al. 1992. CFN. 106(2):87-99. 4. Cody et al. 2003. CFN 117(3):448-465. 5. http://aknhp.uaa.alaska.edu/rareguide/md1.html. Four additional Drummond bluebell records in Nunavut were provided by Bruce Bennett in October 2019: Bluenose Lke area, Cape Young DEW Line site, Camp Necessity Clifton Point, and Wollaston Peninsula.RAUP'S WILLOW (Salix raupii) locations from: 1. McJannet CL, Argus GW and Cody WJ . 1995 . Rare Vascular Plants in the Northwest Territories. 2. Argus 1986. CFN 100(3):386-388. 3. Argus 1974. Can J Bot 52:1303-1304. BANKS ISLAND ALKALI GRASS (Puccinellia banksiensis) records were drawn from ENR's NWT Virtual Herbarium in November 2013. ARCTIC ORANGEBUSH LICHEN (Seirophora aurantiaca) locations from: Sokoloff, P. & McMullin, T. 2020. Seirophora aurantiaca. The IUCN Red List of Threatened Species 2020: e.T175710010A175710692. https://dx.doi.org/10.2305/IUCN.UK.2020-3.RLTS.T175710010A175710692.en.https://www.iucnredlist.org. Downloaded on 10 November 2023. Seirophora aurantiaca is endemic to the Inuvialuit Settlement Region in the Northwest Territories, Canada, where it occurs on Banks Island, Melville Island, Victoria Island, and the Cape Parry area of the Northwest Territories mainland. This species is only known from 12 sites in the Canadian Arctic, documented by 18 herbarium collections. (Sokoloff and McMullin 2020)MACKENZIE HAIRGRASS was removed from this dataset in January 2024. A single Canadian Museum of Nature specimen 310905, collected at Old Fort Reliance on Great Slave Lake in 1927, was labeled as Deschampsia mackenzieana . However, Jeff Saarela at Canadian Museum of Nature had studied this specimen in 2018 and compared its morphology to Mackenzie hairgrass from Saskatchewan; he determined the specimen fits D. cespitosa subsp. cespitosa better. (J. Saarela, pers. comm). Therefore the best available information at this point suggests the NWT specimen is likely not Mackenzie hairgrass.

Copyright Text: Contact: Wildlife Biologist (Species at Risk), Environment and Climate Change, Government of the Northwest Territories, PO Box 1320, Yellowknife NT, X1A 2L9, (867) 767-9237 extension 53214, SARA@gov.nt.ca

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