Dryopteris intermedia, the intermediate wood fern or evergreen wood fern,[4][3] is a perennial, evergreen wood fern native to eastern North America. It is a diploid species, and is the parent of several species of hybrid origin, including Dryopteris carthusiana. Other common names for this species include intermediate shield fern, fancy wood fern, fancy fern, glandular wood fern, American shield fern and common wood fern.[2][3][5][6]
This fern is often confused with several other wood fern species, including D. carthusiana, D. campyloptera, and D. expansa. It especially extensively shares the range of D. carthusiana, but the two may be distinguished by the innermost pinnule on the bottom side of the bottom pinna: this pinnule is longer than the adjacent pinnules in D. carthusiana, but shorter or even in D. intermedia.
^"NatureServe Explorer 2.0 - Dryopteris intermedia Evergreen Woodfern". explorer.natureserve.org. Retrieved 9 October 2020.
^ abLord Britton, Nathaniel; Brown, Addison (1970). Ophioglossaceae to Polygonaceae; ferns to buckwheat. Courier Corporation. p. 22. ISBN 0486226425.
^ abc"Dryopteris intermedia - Database of Vascular Plants of Canada (VASCAN)". VASCAN. Retrieved 2020-10-16.
^ abUSDA, NRCS (n.d.). "Dryopteris intermedia (intermediate woodfern)". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 2020-10-16.
being Dryopterisintermedia, known in North America as the intermediate wood fern, and an unknown, apparently extinct species dubbed Dryopteris semicristata...
The moth genus Dryopteris is now considered a junior synonym of Oreta. Dryopteris /draɪˈɒptərɪs/, commonly called the wood ferns, male ferns (referring...
a tetraploid species of hybrid origin, the parents being Dryopterisintermedia and Dryopteris expansa. Phenotypologically, the fern greatly resembles the...
erect over the winter and release the spores in early spring. Along with Dryopteris goldieana, it is one of the largest species of fern in eastern North America...
Neckeraceae Neomacounia nitida Family Pteridaceae Adiantum lianxianense Dryopteris ascensionis Family Delesseriaceae Vanvoorstia bennettiana Family Cyperaceae...
Pteridium aquilinum - common Dryopteris carthusiana - common Dryopteris cristata Dryopteris expansa - common Dryopteris filix-mas - common Equisetum arvense...
malabarica Lindsaeaceae R Near threatened Lindsaea tenera Lindsaeaceae R Dryopteris gamblei Dryopteridaceae V ML, UP, WB Lastreopsis wattii Dryopteridaceae...
(Hymenophyllum wilsonii, Phegopteris connectilis, Polystichum aculeatum and Dryopteris aemula) are also common. Other plant species include: Acaena ovalifolia...
genus †Dryinoides oxyrhachis – type locality for species Dryopteris †Dryopteris lakesi †Dryopteris serrata Contents A B C D E F G H I J K L M N O P Q R S...
claiborniana (1917) Dryopteris escheri Comb nov (Heer) LaMotte Miocene Switzerland A wood fern species Moved from Aspidium escheri (1855) Dryopteris guyottii Comb...
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