quillwort

POS

Noun

HYPHEN

quill=wort

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WORDNET DICTIONARY

Noun quillwort has 1 sense

quillwort(n = noun.plant) - any of several spore-bearing aquatic or marsh plants having short rhizomes and leaves resembling quills; worldwide except Polynesia;

is a kind of

fern ally

is a member of genus isoetes, isoetes

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CIDE DICTIONARY

quillwort, n.

Any plant or species of the genus Isoetes, cryptogamous plants with a cluster of elongated four-tubed rushlike leaves, rising from a corm, and containing spores in their enlarged and excavated bases. There are about seventeen American species, usually growing in the mud under still, shallow water. So called from the shape of the shape of the leaves. [1913 Webster]