Bulbous Adderstongue
Ophioglossum crotalophoroides
Last reviewed: June 2026
Light
part shade
Water
medium
Size
2"–8" H × 1"–4" W
Bloom
May, Jun, Jul
Native to
AL, AR, FL, GA and 8 more states
Browse plants for this ecoregion
Bulbous adderstongue is a tiny native fern that grows just 2-8 inches tall with a distinctive single leaf and spore-bearing stalk. This diminutive woodland species thrives in partial shade with moderate moisture and produces its reproductive structures from May through July.
In an HOA neighborhood
Bulbous 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 size makes it nearly invisible
- May appear absent or dead much of the year
- Looks more like a weed than intentional landscaping
Wildlife value
As a fern, this species does not attract pollinators but provides habitat for small invertebrates and adds to native ecosystem diversity.
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.
Does Bulbous Adderstongue fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.