Blunt-lobed grape fern can easily be confused with the variety of cut-leaved grape fern that has smooth leaf edges. Blunt-lobed grape fern tends to have round tips to its fronds, and it stays pure green in winter, while cut-leaved grape fern turns bronze-green. In Connecticut, blunt-lobed grape fern is much rarer than cut-leaved grape fern.
- Synonyms: Sceptridium oneidense
- Family: adder's-tongue (Ophioglossaceae)
- Habitat: rich, wet woods in acidic soil
- Height: 6-15 inches
- Location of spores: separate fertile section of frond, which branches from the sterile portion near the ground
- Petiole (leaf stalk): light green, smooth
- Growth pattern: single leaf
- Persistence: evergreen
- Origin: native
Photo © Don Lubin, courtesy of Ferns et al. of New England.