Bighead Knapweed

Centaurea macrocephala Muss.-Puschk. ex Willd.

2014 Richard Spellenberg cc-by-nc-sa-3.0

Centaurea macrocephala (Bighead Knapweed) is a species of perennial herb in the family Asteraceae. They have achenes. Flowers are visited by Buff-tailed bumblebee, Yellow Bumblebee, Vestal cuckoo bee, and Red tailed bumblebee.

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://purl.obolibrary.org/obo/PO_0030107
Definition: a fruit which develops from a carpel or gyneocium and at maturity comprises a dry exocarp, a dry mesocarp, and a dry endocarp that are connected to a seed coat by a funicle

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EOL has data for 13 attributes, including:

is eaten by
- URI: http://purl.obolibrary.org/obo/RO_0002471
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Bombus vosnesenskii Radoszkowski 1862 (Vosnesensky Bumble Bee)
host of
- URI: http://purl.obolibrary.org/obo/RO_0002453
- Attribution: From OBO Relation Ontology
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Myotis polyomavirus VM-2008
parasitized by
- URI: http://purl.obolibrary.org/obo/RO_0002445
- Comment: Auto-added during harvest #37. A human needs to edit this.
- Attribution: Global Biotic Interactions
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Golovinomyces cichoracearum (DC.) V. P. Heluta 1988
visited by
- URI: http://purl.obolibrary.org/obo/RO_0002619
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Larinus obtusus Sturm 1826 (Knapweed Seedhead Weevil)
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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fruit type
- URI: http://purl.obolibrary.org/obo/TO_0000850
- Definition: A fruit anatomy and morphology trait (TO:0002629) which is associated with the type of a fruit (PO:0009001).
- Attribution: [database_cross_reference: PO:0009001] [database_cross_reference: TO:moorel]
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achenes
- URI: http://purl.obolibrary.org/obo/PO_0030107
- Definition: a fruit which develops from a carpel or gyneocium and at maturity comprises a dry exocarp, a dry mesocarp, and a dry endocarp that are connected to a seed coat by a funicle
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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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Michigan
- URI: http://www.geonames.org/5001836
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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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mountain
- URI: http://purl.obolibrary.org/obo/ENVO_00000081
- Definition: A landform that extends above the surrounding terrain in a limited area. A mountain is generally steeper than a hill, but there is no universally accepted standard definition for the height of a mountain or a hill although a mountain usually has an identifiable summit and a local relief of more than 300m.
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life cycle habit
- URI: http://purl.obolibrary.org/obo/TO_0002725
- Definition: Determined for type of life cycle being annual, biennial, perennial etc.
- Comment: The life cycle habit indicates the typical duration of an individual plant's life. Common values are annual, biennial, and perennial. Some plants have different durations depending on environment or location, so a plant can have more than one value.
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perennial
- 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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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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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 bighead knapweed. View this species on GBIF

2014 Richard Spellenberg cc-by-nc-sa-3.0