Wetland and Aquatic Plants
of
Oklahoma
Interactive Keys: Emergent
Ferns
1. Chain
fern (Blechnaceae)
2. Wood fern (Dryopteridaceae)
3. Water clover (Marsileaceae)
4. Grapefern (Ophioglossaceae)
5. Royal Fern Osmundaceae
Chain Fern (Blechnaceae)
Netted
chainfern (Woodwardia areolata
(L.) T. Moore)
Native perennial
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NWI status:
OBL
Wood
Fern (Dryopteridaceae)
Sensitive
fern (Onoclea
sensibilis L.)
Native Perennial
NWI
status: FACW
Water clover
(Marsileaceae)
Hairy Water
clover (Marsilea
mucronata A. Braun)
Native perennial
NWI status:
American
pillwort (Pilularia americana A.
Braun)
Native Perennial.
NWI status:
OBL
Grapefern (Ophioglossaceae)
Southern
adderstongue (Ophioglossum vulgatum
L.)
Native perennial.
NWI status:
Royal Fern (Osmundaceae)
Note: Some species of moth use this as a larval
food plant,
such as the osmunda stem borer (Papaipema speciosissima). Used by the Cherokee to treat rheumatism,
chills, and snakebite.
Cinnamon
fern (Osmunda
cinnamomea L.)
Native perennial.
NWI status:
FACW+
Royal
fern (Osmunda
regalis L.)
Native perennial.
NWI status:
OBL
Last update: 4/16/04
Comments to : Bruce Hoagland
bhoagland@ou.edu
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