Monilophytes (ferns): Ophioglossoid Ferns (eusporangiate ferns): Ophioglossales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Sceptridium biternatum
FAMILY
Ophioglossaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Learn more about Sceptridium from the Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Botrychium biternatum
FAMILY
Ophioglossaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Sceptridium biternatum
SYNONYMOUS WITH Flora of North America
Botrychium biternatum
SYNONYMOUS WITH The Ferns and Lycophytes of Texas (Diggs & Lipscomb, 2014)
Botrychium biternatum
INCLUDED WITHIN Guide to the Vascular Plants of Florida (Wunderlin & Hansen, 2003)
Botrychium dissectum
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 006-01-004:
Botrychium biternatum FAMILY Ophioglossaceae
SYNONYMOUS WITH Ferns of the Southeastern States (Small, 1938)
Botrychium biternatum
COMMON NAME:
Southern Grapefern
To see larger pictures, click or hover over the thumbnails.
)
JK Marlow jkm150822_840
August Oconee County SC
Brasstown Creek Heritage Preserve
Sterile blade mostly 2-pinnate, the segments sharply serrulate, per Weakley's Flora.
)
JK Marlow jkm150822_840b
August Oconee County SC
Brasstown Creek Heritage Preserve
Marginal teeth finer and more uniform than in B. dissectum, per The Ferns and Lycophytes of Texas (Diggs & Lipscomb, 2014).
)
Rusty Wilson fkw_grapefern_1
September Greenwood County SC
Ninety Six National Historic Site
Fertile stalk arising near base of stipe or sometimes below ground level, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
)
Rusty Wilson fkw_grapefern_4
September Greenwood County SC
Ninety Six National Historic Site
Sporangia on branching segments at upper end of the fertile stalk, per Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986).
)
Rusty Wilson fkw_grapefern_6
September Greenwood County SC
Ninety Six National Historic Site
)
JK Marlow jkm0309u_04
September Greenville County SC
Blade composed of a sterile portion & an erect fertile ...panicle, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm0310f_24
October Greenville County SC
)
JK Marlow jkm0310f_27
October Greenville County SC
Sporangia sessile, around 1mm in diameter, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm0310f_31
October Greenville County SC
)
Patrick D. McMillan pdmb_biternatum
October
Leaves usually one per season, sometimes more, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Sceptridium biternatum
FAMILY
Ophioglossaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Botrychium biternatum
FAMILY
Ophioglossaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Sceptridium biternatum
SYNONYMOUS WITH
Flora of North America
Botrychium biternatum
SYNONYMOUS WITH
The Ferns and Lycophytes of Texas (Diggs & Lipscomb, 2014)
Botrychium biternatum
INCLUDED WITHIN
Guide to the Vascular Plants of Florida (Wunderlin & Hansen, 2003)
Botrychium dissectum
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 006-01-004:
Botrychium biternatum
FAMILY
Ophioglossaceae
SYNONYMOUS WITH
Ferns of the Southeastern States (Small, 1938)
Botrychium biternatum
217
Fern/Fern ally
Perennial
Habitat: Moist forests, clearings, old fields, per Weakley's Flora
Native to the Carolinas & Georgia
Common (rare in NC Coastal Plain)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Evergreen
Leaf consists of a mostly 2-pinnate sterile blade & a fertile panicle
FRUIT:
Summer/Fall
TO LEARN MORE about this plant, look it up in a good book!
- Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986) p022
- The Ferns and Lycophytes of Texas (Diggs & Lipscomb, 2014) p178
- Ferns of Alabama (Short & Spaulding, 2012) p123
- Ferns of the Smokies (Evans, 2005) p39
- Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001) p151
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p185
- Peterson Field Guide to Ferns of Northeastern and Central North America p270
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