Northern Adder's-tongue is a small, inconspicuous fern with a single, tongue-like frond. Its unique appearance and rarity make it a prized find for botanists. This plant is often found in moist, grassy areas.
Best time to see a Northern Adder's-tongue
The best time to see a Northern Adder's-tongue is May–July, when about 74% of U.S. sightings happen, based on 122 research-grade iNaturalist observations.
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Recent Northern Adder's-tongue sightings near you
Live, research-grade observations from iNaturalist. Allow location to center the map on you.
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