quillwort family

Noun
  1. Quillworts;
    Coextensive with the genus Isoetes (synset 113246853)
    is a type of: fern family - families of ferns and fern allies
    member holonym: genus isoetes, isoetes - type and genus of the Isoetaceae and sole extant genus of the order Isoetales
    belongs to: isoetales, order isoetales - aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales
    same as: family isoetaceae, isoetaceae

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