Photo of an Engelmann’s adder’s tongue with a black background

    Adder's Tongues

    Ophioglossum spp.
    Photo of a broad beech fern

    Broad Beech Fern

    Phegopteris hexagonoptera
    Photo of common scouring rush, many stems in a colony

    Horsetails (Scouring Rushes)

    Equisetum (3 spp. in Missouri)
    Photo of Mexican mosquito fern plants on a pond surface, surrounded by duckweed

    Mexican Mosquito Fern

    Azolla mexicana
    Photo of a sensitive fern, vegetative leaf

    Sensitive Fern

    Onoclea sensibilis
    Photo of walking fern plants growing on a moss-covered boulder

    Walking Fern

    Asplenium rhizophyllum (syn. Camptosorus rhyzophyllus)