quillwort – מילון אנגלי-אנגלי
quillwort
n.
any fernlike marsh plant of the genus Isoetes (Botany)
Isoetes
Isoetes, commonly known as the
quillworts, is a genus of plants in the class
Isoetopsida and order
Isoetales. They are
lycopods. There are about 140–150 species, with a
cosmopolitan distribution but often scarce to rare. Some
botanists split the genus, separating two South American species into the genus
Stylites, although molecular data place these species among other species of
Isoetes, so the genus does not warrant taxonomic recognition.
quillwort
Noun
1. any of several spore-bearing aquatic or marsh plants having short rhizomes and leaves resembling quills; worldwide except Polynesia
(hypernym) fern ally
(member-holonym) Isoetes, genus Isoetes
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.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
About
quillwort
s.
brasmegrasfamilien (Botanikk)
