adder's tongue

Definitions

1. Any of several ferns in the genus Ophioglossum, whose spores are produced on a spike resembling a serpent's tongue.
   countable, uncountable
2. A lily in the genus Erythronium, other common names of which include fawn lily, trout lily and dog's tooth violet.
   countable, uncountable
3. Hart's tongue (fern) (Asplenium scolopendrium, syn. Phyllitis scolopendrium).
   countable, uncountable
4. early-purple orchid, early spring orchis Orchis mascula
   countable, uncountable

Equivalents

CEFR level