natural areas inventory - Niagara Peninsula Conservation Authority

Checklist of the Vascular Plants of Niagara Regional Municipality, Ontario(M.J. Oldham March 2010)SCIENTIFIC NAME COMMON NAME NIAG NIAGARA NOTES HAMI HANO COSEWIC MNR SRANK FAMILYHieracium venosum L. Rattlesnake Weed RHHistorically documented (CAN, DAO,TRT) from Queenston, Niagara Glen,Whirlpool, Paradise Grove, andelsewhere along the Niagara River-- R1 S2 ASTERACEAE(Argus et al. 1982-1987, ARVPOdatabase). No recent Niagara reports.Hieracium vulgatum Fries Common Hawkweed IRW.D. Bakowsky #2006-004 fromParadise Grove in 2006. = Hieracium I -- SE2? ASTERACEAElachenalii.Hippuris vulgaris L. Mare's-tail RObserved and photographed by D.Gregory (pers. comm. 2010) at GibsonLake, Thorold, in 2006 and 2009. Thisspecies is otherwise very rare orabsent from Ontario's Carolinian-- -- S5 PLANTAGINACEAEZone and this population may haveoriginated from plants dumped intothe lake.Holcus lanatus L. Velvet Grass IRRare weed. M.J. Oldham #36621 (DAO)from Brown's Point Park, Niagara-- I SE2 POACEAEParkway, in 2006.Rare, early flowering weed of lawns andHolosteum umbellatum L. Jagged-chickweed IR other open disturbed areas. M.J. Oldham I I SE2 CARYOPHYLLACEAE#32621 (DAO) near Queenston in 2006.Hordeum jubatum L. ssp.jubatumFoxtail Barley IU Locally common along salted roadsides. I I SE5 POACEAEHoustonia canadensisWilld.Hudsonia tomentosa Nutt.var. tomentosaFringed HoustoniaWoolly BeachheatherRRHKnown from several sites on exposedlimestone bedrock along the NiagaraRiver. M.J. Oldham #32361 (NHIC)from Niagara Glen in 2006. Scatteredthroughout southern Ontario, often onalvars. Confused with H. longifoliaand sometimes included within it (e.g.Morton & Venn 1990, Riley et al.1996). Local reports of Houstonialongifolia are probably based onHoustonia canadensis. = Hedyotiscanadensis.An historical Pt. Abino Peninsularecord (Macdonald 1990) is the onlyone from southwestern Ontario.-- R2 S4? RUBIACEAE-- -- S3 CISTACEAENatural Heritage Areas Inventory, 2010 9-126