Narrow Triangle Grape Fern
- Synonyms: Botrychium lanceolatum var. angustisegmentum Pease & A.H. Moore
- Family: adder's-tongue (Ophioglossaceae)
- Habitat: moist woods, moist meadows, and wetlands
- Height: 3-12 inches
- Location of spores: separate fertile portion of frond, which branches from the sterile portion at the base of the blade
- Petiole (leaf stalk): greenish, smooth, fleshy
- Growth pattern: single leaf
- Persistence: deciduous
- Origin: native
Photographed in Hunterdon County, New Jersey in early June.
This is the same fern viewed from above.
Photographed in Warren County, New York in mid-June.