Photo of common scouring rush, many stems in a colony

    Horsetails (Scouring Rushes)

    Equisetum (3 spp. in Missouri)
    Photo of lowland brittle fern fronds and fiddleheads growing in woods

    Lowland Brittle Fern (Southern Fragile Fern)

    Cystopteris protrusa (formerly C. fragilis var. protrusa)