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Table 1. List of Dense Blazing Star populations in Canada.
Canadian Populations County or Regional Municipality Last Observed Abundance1 at last observation Status2 Notes
Extant Native Populations
1. Port Franks ANSI3 Lambton 2008 54 stems Extant  
2. Walpole Island First Nation Lambton 2008 >120 000 stems Extant  
3. Pinery Provincial Park Lambton 2011 ~2 100 stems (in 2008) Extant  
4. Dutton Prairie Elgin 2008 ~400 stems Extant  
5. Ojibway Prairie Complex and surrounding areas4 Essex 2010 14 000 to 20 000 stems
in >13 subpopulations		 Extant  
6. Cedar Creek Essex 2008 67 stems Extant  
7. Tupperville Chatham-Kent 2008 1 stem Extant Presumed native; Along a railway
8. Highgate Chatham-Kent 2008 6 stems Extant Presumed native; Along a railway
9. Murkirk northeast of Highgate Chatham-Kent 2008 3 stems Extant Presumed native; Along a railway
10. Lucan Middlesex 2008 6 stems Extant Presumed native, although thought by some to be introduced; Along a railway
Planted Populations At Restoration Sites (native seed source)
Rural Lambton Stewardship Network restoration sites Lambton 2010 More than 105 sites To be confirmed Known native seed source
Introduced Populations And Populations Of Unknown Origin Or Status
Edwards Lake, Ontario Kenora District 2003 20 stems Extant Derived from garden escapes but occurs in natural habitat
Westhill York Region 2001 "thriving" Presumed extant "Introduced outside natural range" (COSEWIC 2010).
Oka, Quebec Deux-Montagnes Unknown No information Presumed extant Listed as SNA (introduced) (NatureServe 2010)
Fort Erie Niagara Region 2000 ~200 plants Unknown May be an introduced population; Along a railway
Cofel Line Prairie Chatham-Kent 2000 1 plant Unknown Not seen in 2008 but some areas not searched; Along a railway
Bronte Creek Provincial Park Halton Region 1998 1 plant; 5 rosettes5 Unknown Origin unknown (possibly adventive) but occurs in prairie habitat; Not searched in 2008
Highland Hotel, Kingston Frontenac County 1976 No information Unknown Introduced population derived from garden escapes
East Point Park, Scarborough Toronto Metropolitan Unknown No information Unknown May be an introduced population; Along a railway

Sources: (Allen 2001; COSEWIC 2010; Ludolph pers. comm. 2010; NatureServe 2010; NHIC 2011).

1 Abundance information is reported using either the number of individuals (number of plants) or the stem count, depending on the source of the data. Both measures are not available for all sites.

2 Subject to change

3 Area of Natural and Scientific Interest

4 Portions of several subpopulations were on the federal Plaza site and within the Endangered Species Act, 2007 permit boundary for the HGP and transplanted to restoration sites. Estimated abundance and extent of occurrence may be subject to change.

5 A rosette consists of leaflets with no flowering stalk

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