Brackenfern

Pteridium

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Pteridium (Brackenfern) is a genus of herb in the family Dennstaedtiaceae. They are native to Canada, Saint-Pierre Et Miquelon, Alaska, The Contiguous United States, Puerto Rico, and Hawaii. They have bipinnate + pinnatifid leaves. Individuals can grow to 8.5 m. They have alternation of generations.

URI: http://purl.obolibrary.org/obo/FLOPO_0022142
Definition: whole plant herbaceous

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URI: http://www.geonames.org/6251999

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URI: http://www.geonames.org/3424932

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URI: http://www.geonames.org/5879092
Attribution: GeoNames

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URI: http://www.wikidata.org/entity/Q578170

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URI: http://www.geonames.org/4566966

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URI: http://www.geonames.org/5855797

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URI: http://eol.org/schema/terms/bipinnatepinnatifid
Definition: a bipinnately compound leaf, with the pinnae being pinnatifid.
Attribution: https://en.wikipedia.org/wiki/Pinnation

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URI: http://eol.org/schema/terms/alternatingReproduction
Definition: Organisms with a life cycle that features alternation of generations with sexual and asexual reproduction.

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EOL has data for 13 attributes, including:

geographic distribution includes
- URI: http://eol.org/schema/terms/Present
- Definition: This organism is known to be present in this location or region. Not exclusive; other regions may also be reported.
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Alabama
- URI: http://www.geonames.org/4829764
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habitat
- URI: http://purl.obolibrary.org/obo/RO_0002303
- Definition: x has habitat y if: x is an organism, y is a habitat, and y can sustain and allow the growth of a population of x
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subtropical
- URI: http://purl.obolibrary.org/obo/ENVO_01000205
- Comment: Ontology Description: http://environmentontology.org/ Ontology Source: http://envo.googlecode.com/svn/trunk/src/envo/envo.owl
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Leaf Complexity
- URI: http://purl.obolibrary.org/obo/FLOPO_0007484
- Definition: whether a leaf is intricate or compounded
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bipinnate + pinnatifid
- URI: http://eol.org/schema/terms/bipinnatepinnatifid
- Definition: a bipinnately compound leaf, with the pinnae being pinnatifid.
- Attribution: https://en.wikipedia.org/wiki/Pinnation
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leaf lamina area
- URI: http://top-thesaurus.org/annotationInfo?viz=1&&trait=Leaflet_lamina_area
- Definition: the area of the leaflet lamina in the one sided projection
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75 mm^2
leaf venation structure
- URI: http://purl.obolibrary.org/obo/FLOPO_0008074
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parallel/free (leaf veins)
- URI: http://eol.org/schema/terms/freevein
- Definition: veins run parallel and equidistant to each other for most of the length of the leaf; they may converge or fuse (anastomose) towards the apex
- Attribution: https://en.wikipedia.org/wiki/Leaf#Veins
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native range includes
- URI: http://eol.org/schema/terms/NativeRange
- Definition: Lists jurisdictions in which a given organism is a member of the undisturbed fauna or flora.
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Hawaii
- URI: http://www.geonames.org/5855797
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number of public records in bold
- URI: http://eol.org/schema/terms/NumberPublicRecordsInBOLD
- Definition: number of records in this clade in the Barcode Of Life Database (BOLD)
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22
plant growth form
- URI: http://purl.obolibrary.org/obo/FLOPO_0900032
- Definition: whole plant growth form. eg: herbaceous, tree, liana
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herb
- URI: http://purl.obolibrary.org/obo/FLOPO_0022142
- Definition: whole plant herbaceous
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produces
- URI: http://purl.obolibrary.org/obo/RO_0003000
- Definition: This organism produces this material or substance, either during its life or after death. A produces B if some process that occurs in A has output B.
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oxygen
- URI: http://purl.obolibrary.org/obo/CHEBI_15379
- Definition: molecular oxygen, O2
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reproduction
- URI: http://purl.obolibrary.org/obo/GO_0000003
- Definition: The production of new individuals that contain some portion of genetic material inherited from one or more parent organisms
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alternation of generations
- URI: http://eol.org/schema/terms/alternatingReproduction
- Definition: Organisms with a life cycle that features alternation of generations with sexual and asexual reproduction.
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spore arrangement
- URI: http://eol.org/schema/terms/sporeArrangement
- Definition: The important feature of homospory is the four fold division involved in spore production, this takes the form of either a tetrahedra which gives a trilete (Y shaped scar) spore or a tetragon which gives a monolete (single linear scar) spore.
- Attribution: https://www.ucl.ac.uk/GeolSci/micropal/spore.html
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trilete
- URI: http://eol.org/schema/terms/trilete
- Definition: spores bearing a Y shaped scar, indicating that they were arranged in a tetrahedral spore tetrad
- Attribution: https://www.ucl.ac.uk/GeolSci/micropal/spore.html
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trophic guild
- URI: http://eol.org/schema/terms/TrophicGuild
- Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
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photoautotroph
- URI: http://purl.obolibrary.org/obo/ECOCORE_00000130
- Definition: An autotroph which is capable of transforming light into chemical energy.
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Known occurrences, collected specimens and observations of brackenfern. View this species on GBIF

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brackenfern includes 14 children: