Limestone Adder's-tongue is a small, inconspicuous fern with a single leaf and a distinctive spore-bearing spike. It is named for its tongue-like appearance and preference for limestone-rich soils. This plant is often overlooked due to its small size and rarity.
Best time to see a Limestone Adder's-tongue
The best time to see a Limestone Adder's-tongue is March–April, when about 67% of U.S. sightings happen, based on 554 research-grade iNaturalist observations.
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Recent Limestone Adder's-tongue sightings near you
Live, research-grade observations from iNaturalist. Allow location to center the map on you.
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