Ophioglossum lusitanicum is a tiny winter fern bearing a small ovate sterile frond and a spore-bearing spike, dying back by spring in damp, grassy habitats.
Above information is sourced from Wikipedia
© Eleftherios Katsillis (CC-BY)
© (c) Eleftherios Katsillis, some rights reserved (CC BY)
© Ere BU − Tela Botanica
© (c) Hugo Innes, some rights reserved (CC BY)
© (c) Noé Fleury Frouart, some rights reserved (CC BY)