Dig deeper at SERNEC, a consortium of southeastern herbaria.
Monilophytes (ferns): Ophioglossoid Ferns (eusporangiate ferns): Ophioglossales
WEAKLEY'S FLORA (11/30/12):
Ophioglossum pycnostichum
FAMILY
Ophioglossaceae
LESS THAN
PLANTS NATIONAL DATABASE:
Ophioglossum vulgatum
FAMILY
Ophioglossaceae
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (1968) 006-02-004:
Ophioglossum vulgatum var. pycnostichum
FAMILY
Ophioglossaceae
COMMON NAME:
Southern Adder's-tongue
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Don Lewis tdl_1086
March? Greenville County SC
Firefly Forest
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JK Marlow jkm180408_1146
April McCormick County SC
Parks Mill
Sporangia fused together in two partially buried rows on erect stalk, per Ferns of the Smokies.
COMPARE
Adder's Mouth and Adder's Tongue
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Roxanna Martin rlm4211_44
April Spartanburg County SC
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Roxanna Martin rlm4910_047
April Spartanburg County SC
Blade is oval, rounded at top with broad, abruptly tapering base, per Field Guide to the Ferns and Other Pteridophytes of Georgia.
)
Betsy George bmg_39
May Greenville County SC
Ophioglossum's chromosome numbers are the highest known in all vascular plants, per Flora of North America.
)
JK Marlow jkm110522_677
May Greenville County SC
Firefly Forest
Elusive, 4-10" tall, withering in midsummer, per Peterson Field Guide to Ferns of Northeastern and Central North America.