Plants of the Credit River Watershed - Credit Valley Conservation

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Common Name Scientific Name Subspecies/ Variety G-Rank S-Rank Plants of the Credit River Watershed COSEWIC foxtail barley Hordeum jubatum ssp. jubatum G5 SE5 Yes Yes Yes common barley Hordeum vulgare G? SE2 Yes Yes Yes alpine rush Juncus alpinoarticulatus G5 S5 rare rare No Yes Yes Synonym: Juncus alpinus jointed rush Juncus articulatus G5 S5 No Yes Yes Baltic rush Juncus balticus G5 S5 rare rare No Yes Yes short-tailed rush Juncus brevicaudatus G5 S5 rare rare No Yes No Historic record - 1891 toad rush Juncus bufonius G5 S5 No Yes Yes Canada rush Juncus canadensis G5 S5 rare rare No Yes No Historic record - 1908 compressed rush Juncus compressus G5 SE5 Yes Yes Yes path rush Juncus dudleyi G5 S5 No Yes Yes soft rush Juncus effusus ssp. solutus G5 S5 No Yes Yes knotted rush Juncus nodosus G5 S5 No Yes Yes path rush Juncus pylaei G5 S5 rare rare No Yes Yes path rush Juncus tenuis G5 S5 No Yes Yes Torrey's rush Juncus torreyi G5 S5 No Yes Yes rice cut-grass Leersia oryzoides G5 S5 No Yes Yes white cut-grass Leersia virginica G5 S4 rare rare No Yes Yes perennial rye-grass Lolium perenne G? SE4 Yes Yes Yes Synonym: Lolium multiflorum poison rye-grass Lolium temulentum G? SEH Yes Yes No Historic record - 1912 hairy woodrush Luzula acuminata G5 S5 No Yes Yes many-flowered woodrush Luzula multiflora ssp. multiflora G5 S5 rare rare No Yes Yes melic grass Melica smithii G4 S4? rare rare No Yes Yes wood millet Milium effusum G5 S4S5 rare rare No Yes No Historic record - 1911 Amur silver grass Miscanthus sacchariflorus G? SEH Yes Yes Yes wire-stemmed muhly Muhlenbergia frondosa G5 S4 rare rare No Yes Yes wild timothy Muhlenbergia glomerata G5 S5 rare rare No Yes No Historic record - 1910 Mexican muhly Muhlenbergia mexicana var. mexicana G5 S5 No Yes Yes woodland muhly Muhlenbergia sylvatica var. sylvatica G5 S1 rare rare rare No Yes Yes white-grained mountain-rice Oryzopsis asperifolia G5 S5 No Yes Yes black-grained mountain-rice Oryzopsis racemosa G5 S4 rare rare No Yes Yes dwarf panic grass Panicum acuminatum var. acuminatum G5 S5 No Yes Yes Synonyms: Dichanthelium acuminatum, Panicum implicatum, Panicum lanuginosum, Panicum praecocius, Panicum villosissimum witch grass Panicum capillare G5 S5 No Yes Yes fall panic grass Panicum dichotomiflorum G5 SE5 Yes Yes Yes broad-leaved panic grass Panicum latifolium G5 S4 rare rare No Yes Yes narrow-leaved panic grass Panicum linearifolium G5 S4S5 rare rare No Yes Yes broom-corn millet Panicum miliaceum G? SE4 Yes Yes Yes reed canary grass Phalaris arundinacea G5 S5 No Yes Yes canary grass Phalaris canariensis G? SE2 Yes Yes No Historic record - 1890 timothy Phleum pratense G? SE5 Yes Yes Yes common reed Phragmites australis G5 S5 No Yes Yes Synonym: Phragmites communis woodland bluegrass Poa alsodes G4? S4 rare rare No Yes Yes annual bluegrass Poa annua G? SE5 Yes Yes Yes bulbous bluegrass Poa bulbosa G? SE3 Yes Yes Yes Credit Valley Conservation Page 24 Prov Status GTA Status CVC/Peel Status Non-Native Status Peel Region CVC Notes
Common Name Scientific Name Subspecies/ Variety G-Rank S-Rank Plants of the Credit River Watershed COSEWIC Canada bluegrass Poa compressa G? S5 No Yes Yes wood bluegrass Poa nemoralis G5 SE3 Yes Yes Yes fowl bluegrass Poa palustris G5 S5 No Yes Yes Kentucky bluegrass Poa pratensis ssp. pratensis G5 S5 No Yes Yes two-rayed bluegrass Poa saltuensis G5? S4 rare rare No Yes Yes rough bluegrass Poa trivialis G? SE3 Yes Yes Yes saltmarsh grass Puccinellia distans G5 SE5 Yes Yes Yes white beakrush Rhynchospora alba G5 S5 rare rare No Yes No false melic grass Schizachne purpurascens ssp. purpurascens G5 S5 No Yes Yes little bluestem Schizachyrium scoparium G5 S4 rare rare No Yes Yes Synonym: Andropogon scoparius hard-stemmed bulrush Scirpus acutus G5 S5 rare rare No Yes Yes green bulrush Scirpus atrovirens G5 S5 No Yes Yes Synonym: Scirpus hattorianus (in part) Clinton's club-rush Scirpus clintonii G4 S2 rare rare rare No Yes Yes wool-grass Scirpus cyperinus G5 S5 No Yes Yes river bulrush Scirpus fluviatilis G5 S4S5 rare rare No Yes Yes alpine cotton-grass Scirpus hudsonianus G5 S5 rare rare No Yes Yes red-sheathed bulrush Scirpus microcarpus G5 S5 No Yes Yes Synonym: Scirpus rubrotinctus stalked wool-grass Scirpus pedicellatus G4 S4? rare rare No Yes Yes Synonym: Scirpus cyperinus var. pedicellatus lined bulrush Scirpus pendulus G5 S5 rare No Yes Yes American sword-grass Scirpus pungens G5 S5 rare rare No Yes Yes Synonym: Scirpus americanus soft-stemmed bulrush Scirpus validus G? S5 No Yes Yes rye Secale cereale G? SE3 Yes Yes Yes foxtail millet Setaria italica G? SE1 Yes Yes No Historic record - 1890 yellow foxtail Setaria pumila G? SE5 Yes Yes Yes Synonym: Setaria glauca bristly foxtail Setaria verticillata G? SE4 Yes Yes Yes green foxtail Setaria viridis G? SE5 Yes Yes Yes indian grass Sorghastrum nutans G5 S4 rare rare No Yes Yes green-fruited burreed Sparganium emersum ssp. emersum NR S5 rare No Yes Yes Synonym: Sparganium chlorocarpum giant burreed Sparganium eurycarpum G5 S5 rare No Yes Yes tall cord grass Spartina pectinata G5 S4 rare rare Yes Yes No Historic record - 1910 / Although native elsewhere in the province, the Peel record is an introduction. slender wedge grass Sphenopholis intermedia G5 S4S5 No Yes Yes sand dropseed Sporobolus cryptandrus NR S4 rare rare No Yes Yes overlooked dropseed Sporobolus neglectus G5 S4 No Yes Yes ensheathed dropseed Sporobolus vaginiflorus G5 S4 No Yes Yes marsh arrow-grass Triglochin palustre G5 S5 rare rare No Yes Yes narrow-leaved cattail Typha angustifolia G5 S5 No Yes Yes common cattail Typha latifolia G5 S5 No Yes Yes hybrid cattail Typha x glauca HYB S5 No Yes Yes = Typha angustifolia x Typha latifolia hybrid wheatgrass x Elyhordeum macounii HYB S1 No Yes Yes corn Zea mays G? SE2 Yes Yes Yes common wild rice Zizania aquatica G5 S4 rare rare No Yes Yes northern wild rice Zizania palustris G4G5 S4 rare rare No Yes Yes Credit Valley Conservation Page 25 Prov Status GTA Status CVC/Peel Status Non-Native Status Peel Region CVC Notes = Elymus trachycaulus x Hordeum jubatum / Synonyms: x Agrohordeum macounii, Elymus macounii Synonym: Zizania aquatica of early ON records (in part) / Historic record - 1927
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Plants of the Credit River Watershed - Credit Valley Conservation

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