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Polystichum
Thesaurus| Noun | 1. |  Polystichum - small to medium-sized terrestrial ferns especially holly ferns; in some classification systems placed in Polypodiaceaegenus Polystichumfern genus - genera of ferns and fern alliesAthyriaceae, Dryopteridaceae, family Athyriaceae, family Dryopteridaceae - alternative names for one of a number of families into which the family Polypodiaceae has been subdivided in some classification systemscanker brake, Christmas fern, dagger fern, evergreen wood fern, Polystichum acrostichoides - North American evergreen fern having pinnate leaves and dense clusters of lance-shaped frondsholly fern - any of various ferns of the genus Polystichum having fronds with texture and gloss like hollyPolystichum setiferum, soft shield fern - European shield fern cultivated in many varieties |
Polystichum
Polystichum a genus of ferns of the family Aspidiaceae. They are terrestrial, rhizomatous plants, usually having stiff, leathery fronds. The sori (clusters of sporangia) are orbicular and, for the most part, have an indusium—a peltate covering. The approximately 175 species of Polystichum are widely distributed. Seven or eight species are found in the USSR, growing in forests and on rocks. Some species are grown as ornamentals in the open ground and in greenhouses. The plants are propa-gated from spores or rhizomes. Polystichum
Related to Polystichum: Polystichum acrostichoidesSynonyms for Polystichumnoun small to medium-sized terrestrial ferns especially holly fernsSynonymsRelated Words- fern genus
- Athyriaceae
- Dryopteridaceae
- family Athyriaceae
- family Dryopteridaceae
- canker brake
- Christmas fern
- dagger fern
- evergreen wood fern
- Polystichum acrostichoides
- holly fern
- Polystichum setiferum
- soft shield fern
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