Monilophytes (ferns): Leptosporangiate Ferns (true ferns): Polypodiales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Dryopteris erythrosora
FAMILY
Dryopteridaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
For an exotic species, it tends to grow in "wild" places that make it appear to be a native species. Learn more at Vascular Plants of North Carolina.
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Dryopteris erythrosora
COMMON NAME:
Autumn Fern, Japanese Red Shieldfern, Japanese Shieldfern
To see larger pictures, click or hover over the thumbnails.
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Frank Holleman fsh_0157
April Greenville County SC
Young fronds are orange-red to copper-pink, changing to bright then deep green by summer, per New Invaders of the Southeast (Rawlins et al., 2018).
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Frank Holleman fsh_0158
April Greenville County SC
The reproductive structures containing the spores are bright brick red, per New Invaders of the Southeast (Rawlins et al., 2018).
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JK Marlow jkm190506_8158
May Greenville County SC
Swamp Rabbit Trail
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JK Marlow jkm190506_8159
May Greenville County SC
Swamp Rabbit Trail
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JK Marlow jkm190506_8160
May Greenville County SC
Swamp Rabbit Trail
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JK Marlow jkm190506_8162
May Greenville County SC
Swamp Rabbit Trail
I'm told that plants which have naturalized for a while are less likely to have red sori.
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JK Marlow jkm220517_7868
May Greenville County SC
Blackwell Heritage Preserve
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JK Marlow jkm220517_7871
May Greenville County SC
Blackwell Heritage Preserve
Costa with bullate (blistered-appearing) scales abundant, usually dark, per Weakley's Flora (2022).
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JK Marlow jkm220517_7885
May Greenville County SC
Blackwell Heritage Preserve
An exotic species, but tends to grow in "wild" places that make it appear to be native, per Vascular Plants of North Carolina.
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JK Marlow jkm220517_7887
May Greenville County SC
Blackwell Heritage Preserve
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JK Marlow jkm190614_9127
June Greenville County SC
Swamp Rabbit Trail
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JK Marlow jkm190614_9133
June Greenville County SC
Swamp Rabbit Trail
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JK Marlow jkm190614_9140
June Greenville County SC
Swamp Rabbit Trail
This species seems to be on its way to being an aggressive invasive, per Weakley's Flora (2020).
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JK Marlow jkm200911_7187
September Greenville County SC
Swamp Rabbit Trail
Fronds twice-divided, 1-2' long, per New Invaders of the Southeast (Rawlins et al., 2018).
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JK Marlow jkm200911_7189
September Greenville County SC
Swamp Rabbit Trail
Costa with abundant blistered-looking scales. Sori medial or submedial, per Weakley's Flora (2020).
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JK Marlow jkm141022_181
October Greenville County SC
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JK Marlow jkm141022_181b
October Greenville County SC
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JK Marlow jkm141022_207
October Greenville County SC
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JK Marlow jkm141022_222
October Greenville County SC
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Dryopteris erythrosora
FAMILY
Dryopteridaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Dryopteris erythrosora
4139
Fern/Fern ally
Habitat: Suburban woodlands, especially in ravines and along creeks, per Weakley's Flora
Non-native: Japan, China & Korea
Uncommon in GA Piedmont, rare elsewhere
Click here to see a map, notes, and images from Weakley's Flora of the Southeastern US.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
This plant may be causing problems in natural areas outside its native range, according to authorities such as:
LEAVES:
Evergreen (semi-evergreen in cold climates)
2-pinnate to pinnate-pinnatifid
RHIZOMES? STOLONS?
Cespitose [growing in dense tufts, clumping]
FRUIT:
Summer/Fall
TO LEARN MORE about this plant, look it up in a good book!