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 yellow evening-primrose Oenothera biennis G5 S5 No Yes Yes evening-primrose Oenothera clelandii G3G5 S1 rare rare rare No Yes Yes yellow evening-primrose Oenothera parviflora G? S5? No Yes Yes sundrops Oenothera perennis G5 S4S5 rare rare No Yes No Historic record - 1918 sainfoin Onobrychis viciifolia G? SE1 Yes Yes Yes Historic record - 1891 Scotch thistle Onopordum acanthium G? SE4 Yes Yes Yes hairy false gromwell Onosmodium molle ssp. hispidissumum G4? S2 rare rare rare No Yes No Synonym: Onosmodium hispidissimum / Historic record - 1890 summer snowflake Ornithogalum umbellatum G2? SE3 Yes Yes Yes one-flowered cancer-root Orobanche uniflora G5 S4 rare rare No Yes Yes one-sided pyrola Orthilia secunda G5 S5 rare rare No Yes Yes Synonym: Pyrola secunda sweet cicely Osmorhiza claytonii G5 S5 No Yes Yes Synonym: Osmorhiza brevistylis anise-root Osmorhiza longistylis G5 S5 rare rare No Yes Yes wood sorrel Oxalis acetosella ssp. montana G5T? S5 rare rare No Yes Yes Synonym: Oxalis montana creeping wood sorrel Oxalis corniculata G? SE1 Yes Yes Yes yellow wood sorrel Oxalis dillenii G5 S5? No Yes Yes Synonym: Oxalis stricta (misapplied) European wood sorrel Oxalis stricta G5 S5 No Yes Yes Synonyms: Oxalis europaea, Oxalis fontana ginseng Panax quinquefolius G4 S3 endangered rare rare rare No Yes Yes dwarf ginseng Panax trifolius G5 S4 rare rare No Yes Yes long-headed poppy Papaver dubium G? SE1 Yes Yes No common poppy Papaver somniferum G? SE1 Yes Yes Yes pellitory Parietaria pensylvanica G5 S4 rare rare No Yes Yes large grass-of-Parnassus Parnassia glauca G5 S5 rare rare No Yes Yes small grass-of-Parnassus Parnassia parviflora G4 S4? rare rare No Yes No parsnip Pastinaca sativa G? SE5 Yes Yes Yes Canada lousewort Pedicularis canadensis G5 S5 rare rare No Yes Yes foxglove beard-tongue Penstemon digitalis G5 S4S5 rare rare No Yes Yes hairy beard-tongue Penstemon hirsutus G4 S4 rare rare No Yes Yes ditch stonecrop Penthorum sedoides G5 S5 No Yes Yes grape-leaved sweet-colt's-foot Petasites frigidus G5 S5 rare rare No Yes Yes Synonym: Petasites palmatus wild blue phlox Phlox divaricata G5 S4 rare rare No Yes Yes garden phlox Phlox paniculata G5 SE2 Yes Yes Yes moss phlox Phlox subulata ssp. subulata G5T5 SE2 Yes Yes Yes lopseed Phryma leptostachya G5 S4S5 No Yes Yes Chinese lantern Physalis alkekengi G? SE2 Yes Yes Yes clammy ground-cherry Physalis heterophylla G5 S4 rare rare No Yes Yes Synonym: Physalis lanceolata smooth ground-cherry Physalis subglabrata G5 SU rare rare No Yes Yes Synonym: Physalis virginiana var. subglabrata Virginia ground-cherry Physalis virginiana G5 SU rare rare No Yes Yes Synonym: Physalis longifolia Virginia false dragonhead Physostegia virginiana ssp. virginiana G5 S4 rare Yes Yes Yes Although native elsewhere in the province, all Peel occurrences appear to be introductions. pokeweed Phytolacca americana G5 S4 rare rare Yes Yes No Historic record - 1918 / Although native elsewhere in the province, the Peel occurrence is introduced. spring clearweed Pilea fontana G5 S4 rare rare No Yes Yes dwarf clearweed Pilea pumila G5 S5 No Yes Yes sand plantain Plantago arenaria G?Q S4? Yes Yes Yes Synonym: Plantago psyllium Credit Valley Conservation Page 14 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 narrow-leaved plantain Plantago lanceolata G5 SE5 Yes Yes Yes common plantain Plantago major G5 SE5 Yes Yes Yes hoary plantain Plantago media G5 SE3 Yes Yes Yes Rugel's plantain Plantago rugelii G5 S5 No Yes Yes club-spur orchid Platanthera clavellata G5 S4S5 rare rare No Yes No Synonym: Habenaria clavellata / Historic record - 1907 tall white bog orchid Platanthera dilatata G5 S5 rare rare No Yes Yes Synonym: Habenaria dilatata / Historic record - 1947 tubercled orchid Platanthera flava var. herbiola G4 S3 rare rare rare No Yes No Synonym: Habenaria flava / Historical record - 1891 northern green orchid Platanthera hyperborea G5 S5 No Yes Yes Synonym: Habenaria hyperborea ragged fringed orchid Platanthera lacera G5 S4S5 rare rare No Yes No Synonym: Habenaria lacera / Historic record - 1910 small northern bog orchid Platanthera obtusata G5 S5 rare rare No Yes Yes Synonym: Habenaria obtusata purple fringed orchid Platanthera psycodes G5 S5 rare rare No Yes Yes Synonym: Habenaria psycodes may-apple Podophyllum peltatum G5 S5 No Yes Yes rose pogonia Pogonia ophioglossoides G5 S4S5 rare rare No Yes No Historic record - 1940 clammyweed Polanisia dodecandra G5Q S4 rare rare No Yes Yes Historic record - 1903 fringed polygala Polygala paucifolia G5 S5 No Yes Yes purple milkwort Polygala sanguinea G5 S4 rare rare No Yes Yes Seneca snakeroot Polygala senega G4G5 S4 rare rare No Yes Yes whorled milkwort Polygala verticillata G5 S4 rare rare No Yes Yes hairy Solomon's-seal Polygonatum pubescens G5 S5 No Yes Yes striate knotweed Polygonum achoreum G5 S5 No Yes Yes knotweed Polygonum arenastrum G5? SE5 Yes Yes Yes creeping knotweed Polygonum aviculare G? SE5 Yes Yes Yes Synonym: Polygonum monspeliensis fringed bindweed Polygonum cilinode G5 S5 rare rare No Yes Yes black bindweed Polygonum convolvulus G? SE5 Yes Yes Yes Synonym: Bilderdykia convolvulus Japanese knotweed Polygonum cuspidatum G? SE4 Yes Yes Yes Synonym: Reynoutria japonica Douglas' knotweed Polygonum douglasii G5 S4 rare rare No Yes Yes water-pepper Polygonum hydropiper G5 SE5 Yes Yes Yes mild water-pepper Polygonum hydropiperoides G5 S5 rare rare No Yes No pale smartweed Polygonum lapathifolium G5 S5 No Yes Yes prince's feather Polygonum orientale G? SE3 Yes Yes Yes pink knotweed Polygonum pensylvanicum G5 S5 rare rare No Yes Yes lady's-thumb Polygonum persicaria G? SE5 Yes Yes Yes dotted smartweed Polygonum punctatum G5 S5 rare rare No Yes Yes arrow-leaved tearthumb Polygonum sagittatum G5 S4 rare rare No Yes Yes climbling false buckwheat Polygonum scandens G5 S4S5 rare rare No Yes Yes jumpseed Polygonum virginianum G5 S4 rare rare No Yes Yes Synonym: Tovara virginiana garden purslane Portulaca oleracea G? SE5 Yes Yes Yes silverweed Potentilla anserina ssp. anserina NR S5 rare No Yes Yes silvery cinquefoil Potentilla argentea G? SE5 Yes Yes Yes hybrid cinquefoil Potentilla inclinata HYB SE4 Yes Yes Yes =? Potentilla argentea x Potentilla recta / Synonyms: Potentilla canescens, Potentilla x intermedia of ON reports rough cinquefoil Potentilla norvegica ssp. norvegica G5T? SEU Yes Yes Yes marsh cinquefoil Potentilla palustris G5 S5 rare No Yes Yes bushy cinquefoil Potentilla paradoxa G5 S3 rare rare rare No Yes Yes Credit Valley Conservation Page 15 Prov Status GTA Status CVC/Peel Status Non-Native Status Peel Region CVC Notes
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Plants of the Credit River Watershed - Credit Valley Conservation

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