Dryopteris filix-mas
Male fern Taxonomy
Synonyms: Subspecific taxa: Classification:
Other taxonomic & nomenclature sources: USDA Plants;  ITIS;  The Plant List;  IPNI Images
   
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Species Distribution
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County Map Legend
Absent: Not known from county Medium confidence: Medium or unknown confidence; often old records or unverifiable observations Medium-high confidence: Often observations by expert botanists High confidence: Often vouchered herbarium records Planted / introduced: Native species introduced outside historic range, or only in planted locations within county (e.g., restorations) Historic / extirpated: Only historic records for the species; likely extirpated (Note that this category is not yet functional) North American distribution maps for this species: FLNA;  USDA Plants;  BONAP;  BISON
Collections, Observations & Flowering by Month [?]
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Collections & Observations by Decade [?]
Species Status
Status/Listing: Extinct, Adventive Notes:Collections of this species in IL seem to be based on adventive or planted specimens Origin: Native
Species Description
General: Fern-allies, perennial Roots: adventitious, fibrous, rhizomes Shoots: compound, pinnately leaf type; lobed (pinnately), parted (pinnately) leaf margin; Pinnate leaf venation; oblong leaf shape Inflorescence: no Flowers: Fruit: no Physiology: autotrophic; C3 C02 fixation Reproduction: sexual, vegetative
Ecology & Natural History
Habitat: relatively undisturbed northwest-facing slope of a ravine with Acer saccharum, Quercus rubra ILPIN Notes: probably native leaves twice pinnate; sori close to midvein Evert, E.F. 1980. A range extension for Dryopteris filix-mas. American Fern Journal 70(4): 113-114. Functional Relationships:
Human Relationships:
Wildlife and Livestock Information:
Coefficient of Conservatism (C-value) [?] :
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