Plants of the Credit River Watershed - Credit Valley Conservation

Common Name Scientific Name
Subspecies/
Variety
G-Rank
Plants of the Credit River Watershed
horned pondweed Zannichellia palustris G5 S4 rare rare No Yes Yes
ferns A plant with leaf-like fronds that reproduces using spores.
S-Rank
COSEWIC
maidenhair fern Adiantum pedatum G5 S5 No Yes Yes
ebony spleenwort Asplenium platyneuron G5 S4 rare rare No Yes Yes Alternative name author - (L.) Oakes ex D.Eaton
walking fern Asplenium rhizophyllum G5 S4 rare rare No Yes Yes Synonym: Camptosorus rhizophyllus
hart's-tongue fern Asplenium scolopendrium var. americanum G5T3 S3 rare rare rare No Yes Yes Synonym: Phyllitis scolopendrium
maidenhair spleenwort Asplenium trichomanes G4G5 SU rare rare No Yes Yes
green spleenwort Asplenium trichomanes-ramosum G4 S4 rare rare No Yes Yes Synonym: Asplenium viride
lady fern Athyrium filix-femina var. angustum G5T5 S5 No Yes Yes Synonym: Athyrium angustum
cut-leaved grape fern Botrychium dissectum G5 S5 rare rare No Yes Yes Synonyms: Botrychium dissectum var. obliquum,
narrow-leaved moonwort Botrychium lanceolatum ssp. angustisegmentum G5T4 S3 rare rare rare No Yes No Historic record - 1924
daisy-leaf grape fern Botrychium matricariifolium G5 S4S5 rare rare No Yes Yes
leathery grape fern Botrychium multifidum G5 S5 rare rare No Yes Yes
least moonwort Botrychium simplex G5 S4? rare rare No Yes Yes
rattlesnake fern Botrychium virginianum G5 S5 No Yes Yes
slender cliff-brake Cryptogramma stelleri G5 S4S5 rare rare No Yes Yes
bulblet fern Cystopteris bulbifera G5 S5 No Yes Yes
Mackay's fragile fern Cystopteris tenuis G4G5 S5 No Yes Yes Synonym: Cystopteris fragilis var. mackayi
hay-scented fern Dennstaedtia punctilobula G5 S5 rare rare No Yes Yes
silvery glade fern Deparia acrostichoides G5 S4 rare No Yes Yes Synonym: Athyrium thelypterioides
glade fern Diplazium pycnocarpon G5 S4 rare rare No Yes Yes Synonym: Athyrium pycnocarpon
spinulose woodfern Dryopteris carthusiana G5 S5 No Yes Yes Synonym: Drypoteris spinulosa
Clinton's woodfern Dryopteris clintoniana G5 S4 rare No Yes Yes
crested woodfern Dryopteris cristata G5 S5 No Yes Yes
male fern Dryopteris filix-mas G5 S4 rare rare No No Yes
Goldie's fern Dryopteris goldiana G4 S4 rare rare No Yes Yes
evergreen woodfern Dryopteris intermedia G5 S5 No Yes Yes
marginal woodfern Dryopteris marginalis G5 S5 No Yes Yes
hybrid woodfern Dryopteris x boottii HYB S2 No Yes Yes = Dryopteris cristata x Dryopteris intermedia
triploid woodfern Dryopteris x triploidea HYB S1 No Yes Yes = Dryopteris carthusiana x Dryopteris intermedia
hybrid woodfern Dryopteris x uliginosa HYB S2? No Yes Yes = Dryopteris carthusiana x Dryopteris cristata
oak fern Gymnocarpium dryopteris G5 S5 No Yes Yes
water-clover Marsilea quadrifolia G5 SE1 Yes Yes Yes
ostrich fern Matteuccia struthiopteris G5 S5 No Yes Yes
sensitive fern Onoclea sensibilis G5 S5 No Yes Yes
northern adder's-tongue Ophioglossum pusillum G5 S4S5 rare rare No Yes Yes Synonym: Ophioglossum vulgatum of ON reports
cinnamon fern Osmunda cinnamomea G5 S5 No Yes Yes
interrupted fern Osmunda claytoniana G5 S5 rare rare No Yes Yes
royal fern Osmunda regalis var. spectabilis G5T5 S5 rare No Yes Yes
smooth cliff-brake Pellaea glabella ssp. glabella G5 S4 rare rare No Yes Yes
northern beech fern Phegopteris connectilis G5 S5 rare rare No Yes Yes Synonym: Thelypteris phegopteris
rock polypody Polypodium virginianum G5 S5 rare rare No Yes Yes Synonym: Polypodium vulgare var. virginianum
Christmas fern Polystichum acrostichoides G5 S5 No Yes Yes
Bracken Pteridium aquilinum var. latiusculum G5 S5 No Yes Yes
New York fern Thelypteris noveboracensis G5 S4S5 rare rare No Yes Yes
Credit Valley Conservation Page 2
Prov Status
GTA Status
CVC/Peel Status
Non-Native
Status
Peel Region
CVC
Notes