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Dryopteris intermedia is a perennial fern that grows to a size of about 40–90 cm (16–35 in) tall and 60–90 cm (24–35 in) wide. [6] At its base, it consists of an underground rhizome from which grow the fronds of the plant in a spiral-like arrangement.
Dryopteris / d r aɪ ˈ ɒ p t ə r ɪ s /, [2] commonly called the wood ferns, male ferns (referring in particular to Dryopteris filix-mas), or buckler ferns, is a fern genus in the family Dryopteridaceae, subfamily Dryopteridoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). [3]
It is a tetraploid of hybrid origin, one parent being Dryopteris intermedia, known in North America as the intermediate wood fern, and an unknown, apparently extinct species dubbed Dryopteris semicristata, which is also the presumed parent of the hybrid-origin Dryopteris cristata. This plant is toxic. [4] Showing sori and leaflet shape
Although the Azores are politically part of Portugal, the World Geographical Scheme for Recording Plant Distributions treats the Azores as a distinct botanical country. The archipelago are part of Macaronesia , a biogeographical region which also includes the Canary Islands , Cape Verde Islands , Madeira , and the Selvagens .
Dryopteris filix-mas — male fern; Dryopteris fragrans — fragrant cliff woodfern; Dryopteris goldieana — Goldie's woodfern; Dryopteris intermedia — evergreen woodfern; Dryopteris marginalis — marginal woodfern; Dryopteris x algonquinensis; Dryopteris x benedictii; Dryopteris x boottii; Dryopteris x burgessii; Dryopteris x dowellii ...
Dryopteris aitoniana Pic.Serm. Dryopteris × furadensis Bennert, Rasbach, K.Rasbach & Viane (D. aitoniana × D. intermedia subsp. maderensis) Dryopteris intermedia subsp. maderensis (Alston) Fraser-Jenk. Polypodium × encumeadense (Neuroth, W.Jäger & Bennert) Rumsey, Carine & Robba (P. macaronesicum × P. vulgare) Polystichum drepanum (Sw.) C ...
Dryopteris cristata — crested woodfern; Dryopteris expansa — spreading woodfern, northern Buckler fern, northern woodfern; Dryopteris filix-mas — male fern, Dryopteris fragrans — fragrant woodfern; Dryopteris goldieana — Goldie's woodfern; Dryopteris intermedia — evergreen woodfern; Dryopteris marginalis — marginal woodfern ...
Dryopteris goldieana [1]: 13 Goldie's wood fern, Giant wood fern: Northeastern mountain counties G4 - apparently secure: Dryopteridaceae: Dryopteris intermedia [1]: 14 Evergreen wood fern, Fancy fern: North Georgia G5 - secure: Dryopteridaceae: Dryopteris ludoviciana [1]: 14 Southern wood fern: South of the fall line, mainly in southwestern ...