Lesser Adder’s Tongue Fern

Lesser Adder’s-Tongue Fern
Ophioglossum lusitanicum

Smaller and rarer than the Adder’s Tongue and found on Foula. Only 1 cm high and easily overlooked

Sheila Gear, author The Flora of Foula (not easily available), kindly advised me on where to find this precious plant

On my search I found The Lesser Adder’s Tongue Fern surprisingly close to a cliff edge. With leaves less than 1 cm high, I could easily have missed it!