adder's-tongue definition

  • noun:
    • identify adder's tongue fern.
    • See dogtooth violet.
    • some of a genus of ferns (Ophioglossum), whose seeds are produced on a spike resembling a serpent's tongue.
    • The yellowish dogtooth violet.
    • A genus of ferns (Ophioglossum), whose seeds are manufactured on a spike resembling a serpent's tongue.
    • The yellow dogtooth violet.
    • The fern Ophioglossum vulgatum: so named from kind of its fruiting spike. Also called adder's-spear. See Ophioglossum.
    • A name occasionally directed at the hart's-tongue, Phyllitis Scolopendrium. See Scolopendrium.
    • the eastern species of Erytbronium or dog-tooth violet. The white adder's-tongue is E. albidum.
    • ferns with fertile surges shaped like a snake's tongue

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