Image of Pteridium arachnoideum subsp. arachnoideum

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Tropical Brackenfern

Pteridium arachnoideum (Kaulf.) Maxon

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Pteridium arachnoideum (Tropical Brackenfern) is a species of perennial herb in the family Dennstaedtiaceae. They are native to Amapá, Pampa, Cerrado, Caatinga, Pantanal, Mato Grosso Do Sul, Santa Catarina, Pará, Bahia, Roraima, Amazônia, Rio Grande Do Norte, Mato Grosso, Mata Atlântica, SãO Paulo, GoiáS, Pernambuco, Espirito Santo, Paraná, Puerto Rico, Ceará, Rio De Janeiro, Rio Grande Do Sul, Minas Gerais, ParaíBa, Distrito Federal, and Alagoas. They have bipinnate + pinnatifid leaves. They have alternation of generations.

URI: http://purl.obolibrary.org/obo/FLOPO_0980073
Definition: Of plant duration, a plant whose life span extends over more than two growing seasons, c.f. annual, biennial, ephemeral, of flowering with respect to architecture, hapaxanthic, monocarpic, pleonanthic
Attribution: Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 12, July 2012. Glossary: http://www.mobot.org/mobot/research/apweb/top/glossaryi_p.html#perennial

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

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URI: http://www.geonames.org/3407762

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URI: https://www.wikidata.org/entity/Q184382

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URI: https://www.wikidata.org/entity/Q278512
Definition: tropical savanna ecoregion of Brazil

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URI: https://www.wikidata.org/entity/Q375816

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URI: https://www.wikidata.org/entity/Q157603
Definition: tropical wetland mostly within Brazil, and portions in Bolivia and Paraguay

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URI: https://www.geonames.org/3457415

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URI: https://www.geonames.org/3450387

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URI: https://www.geonames.org/3393129

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URI: https://www.geonames.org/3471168

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URI: http://www.geonames.org/3662560

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URI: https://www.wikidata.org/entity/Q2841453

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URI: http://www.geonames.org/3390290

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URI: https://www.geonames.org/3457419

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URI: https://www.wikidata.org/entity/Q477047

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URI: https://www.geonames.org/3448433

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URI: http://www.geonames.org/3462372

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URI: http://www.geonames.org/3392268

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URI: https://www.geonames.org/3463930

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URI: https://www.geonames.org/3455077

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

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URI: http://www.geonames.org/3402362

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URI: https://www.geonames.org/3451189

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URI: https://www.geonames.org/3451133

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URI: https://www.geonames.org/3457153

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URI: http://www.geonames.org/3393098

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URI: https://www.geonames.org/3463504

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URI: http://www.geonames.org/3408096

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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 16 attributes, including:

cellularity
- URI: http://purl.obolibrary.org/obo/PATO_0001992
- Definition: An organismal quality inhering in a bearer by virtue of the bearers consisting cells. [ PATOC:GVG ]
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multicellular
- URI: http://purl.obolibrary.org/obo/PATO_0001993
- Definition: A cellularity quality inhering in a bearer by virtue of the bearers consisting of more than one cell. [ PATOC:GVG ]
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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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Puerto Rico
- URI: http://www.geonames.org/4566966
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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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anthropogenic
- URI: http://purl.obolibrary.org/obo/ENVO_00000002
- Definition: a geographic feature resulting from the influence of human beings on nature.
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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 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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Puerto Rico
- URI: http://www.geonames.org/4566966
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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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type specimen repository
- URI: http://eol.org/schema/terms/TypeSpecimenRepository
- Definition: The institution that holds a type specimen for a given species. The recommended best practice is to use the identifier in a collections registry such as the Biodiversity Collections Index (http://www.biodiversitycollectionsindex.org/).
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tropical brackenfern includes 5 children: