Longstem Adderstongue
Ophioglossum petiolatum
Last reviewed: June 2026
Light
part shade
Water
medium
Size
4"–12" H × 2"–6" W
Bloom
May, Jun, Jul
Native to
NC
Browse plants for this ecoregion
Longstem adderstongue is a small, uncommon native fern that produces a single leaf and a separate fertile spike during growing season. This diminutive woodland species prefers consistently moist, shaded areas and may go dormant during dry periods.
In an HOA neighborhood
Longstem Adderstongue takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Extremely small and sparse appearance
- May disappear entirely during dormancy
- Too subtle for typical landscaping expectations
Wildlife value
As a fern, this species does not produce flowers or attract pollinators but may provide minor habitat value for small woodland creatures.
Common questions
- How much sun does Longstem Adderstongue need?
- Longstem Adderstongue grows best in part shade conditions.
- When does Longstem Adderstongue bloom?
- Longstem Adderstongue blooms in May, June, and July.
- Where is Longstem Adderstongue native?
- Longstem Adderstongue (Ophioglossum petiolatum) is native to NC, per the USDA PLANTS Database and regional native plant society lists.
- Is Longstem Adderstongue HOA-friendly?
- Longstem Adderstongue takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Longstem Adderstongue? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz