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Blunt-lobed grapefern facts for kids

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Blunt-lobed grapefern
Botrychium oneidense drawing.png
Scientific classification
  • Botrychium dissectum var. oneidense (Gilbert) Farw.
  • Botrychium dissectum f. oneidense (Gilbert) Clute
  • Botrychium oneidense (Gilbert) House

Sceptridium oneidense, the blunt-lobed grapefern, is a fern species in the family Ophioglossaceae.


The leaf blades of S. oneidense are ternately compound. The spores mature in late fall in panicles that rise above the sterile fronds.


At first, S. oneidense was considered a variety of Botrychium dissectum, then a form of it, then possibly a hybrid species. However, after a more detailed study by Wagner in 1961, it was considered its own species.

Distribution and habitat

S. oneidense grows in moist woodlands in eastern United States and Canada from New Brunswick to Ontario and south to North Carolina. In Canada, it is a relatively rare species, usually only found in large groups of Botrychium obliquum.

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Blunt-lobed grapefern Facts for Kids. Kiddle Encyclopedia.