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- Centaurea_maculosa abstract "Centaurea maculosa, the spotted knapweed, is a species of Centaurea native to eastern Europe.It has been introduced to North America, where it is considered an invasive plant species in much of the western United States and Canada. In 2000, C. maculosa occupied more than 7 million acres (28,000 km2) in the US.Knapweed is a pioneer species found in recently disturbed sites or openings. Once it has been established at a disturbed site, it continues to spread into the surrounding habitat. This species outcompetes natives through at least three methods: A tap root that sucks up water faster than the root systems of its neighbors, Quick spread through high seed production, and Low palatability, meaning it is less likely to be chosen as food by herbivores. It is also suspected to be allelopathic, releasing a toxin from its roots that stunts the growth of nearby plants of other species.Its seed is an achene about a quarter of an inch long with a small bristly pappus at the tip which makes the wind its primary means of dispersal. The leaves are a pale grayish-green. They are covered in fine short hairs. First year plants produce a basal rosette, alternate, up to 6 inches (150 mm) long, deeply divided into lobes. It produces a stem in its second year of growth. Stem leaves less lobed progressively getting smaller toward the top. The stem is erect or ascending, slender, hairy and branching, and can grow up to three feet tall. Because cattle prefer the native bunchgrass over Knapweed, overgrazing occurs, increasing the density and range of knapweed infestations. Human disturbance is also a major cause of infestations. Knapweed readily establishes itself and quickly expands in all growth forms in places of human disturbance such as industrial sites, along roadsides,and along sandy riverbanks, and also has the potential to spread into undisturbed natural areas.".
- Centaurea_maculosa binomialAuthority Jean-Baptiste_Lamarck.
- Centaurea_maculosa class Eudicots.
- Centaurea_maculosa division Flowering_plant.
- Centaurea_maculosa family Asteraceae.
- Centaurea_maculosa family Cynareae.
- Centaurea_maculosa genus Centaurea.
- Centaurea_maculosa kingdom Plant.
- Centaurea_maculosa order Asterales.
- Centaurea_maculosa order Asterids.
- Centaurea_maculosa synonym "Centaurea beibersteinii (lapsus)".
- Centaurea_maculosa synonym "Centaurea biebersteinii (Jaub. et Spach) Walp.)".
- Centaurea_maculosa thumbnail Centaurea_maculosa_Bozeman.jpg?width=300.
- Centaurea_maculosa wikiPageExternalLink spotted-knapweed.
- Centaurea_maculosa wikiPageExternalLink spotknapweed.shtml.
- Centaurea_maculosa wikiPageID "7982761".
- Centaurea_maculosa wikiPageRevisionID "601557177".
- Centaurea_maculosa binomial "Centaurea maculosa".
- Centaurea_maculosa binomialAuthority Jean-Baptiste_Lamarck.
- Centaurea_maculosa familia Asteraceae.
- Centaurea_maculosa genus "Centaurea".
- Centaurea_maculosa hasPhotoCollection Centaurea_maculosa.
- Centaurea_maculosa imageWidth "224".
- Centaurea_maculosa name "Centaurea maculosa".
- Centaurea_maculosa ordo Asterales.
- Centaurea_maculosa regnum Plant.
- Centaurea_maculosa species "C. maculosa".
- Centaurea_maculosa synonyms "Centaurea beibersteinii".
- Centaurea_maculosa synonyms "Centaurea biebersteinii ( Walp.)".
- Centaurea_maculosa tribus Cynareae.
- Centaurea_maculosa unrankedClassis Eudicots.
- Centaurea_maculosa unrankedDivisio Flowering_plant.
- Centaurea_maculosa unrankedOrdo Asterids.
- Centaurea_maculosa subject Category:Centaurea.
- Centaurea_maculosa subject Category:Invasive_plant_species.
- Centaurea_maculosa type Eukaryote.
- Centaurea_maculosa type Plant.
- Centaurea_maculosa type Species.
- Centaurea_maculosa type Plant.
- Centaurea_maculosa type Organism.
- Centaurea_maculosa comment "Centaurea maculosa, the spotted knapweed, is a species of Centaurea native to eastern Europe.It has been introduced to North America, where it is considered an invasive plant species in much of the western United States and Canada. In 2000, C. maculosa occupied more than 7 million acres (28,000 km2) in the US.Knapweed is a pioneer species found in recently disturbed sites or openings. Once it has been established at a disturbed site, it continues to spread into the surrounding habitat.".
- Centaurea_maculosa label "Centaurea maculosa".
- Centaurea_maculosa label "Centaurea maculosa".
- Centaurea_maculosa label "قنطريون مبقع".
- Centaurea_maculosa sameAs Centaurea_maculosa.
- Centaurea_maculosa sameAs 153034.
- Centaurea_maculosa sameAs 153140.
- Centaurea_maculosa sameAs m.026mbh_.
- Centaurea_maculosa sameAs Q4117851.
- Centaurea_maculosa sameAs Q4117851.
- Centaurea_maculosa wasDerivedFrom Centaurea_maculosa?oldid=601557177.
- Centaurea_maculosa depiction Centaurea_maculosa_Bozeman.jpg.
- Centaurea_maculosa isPrimaryTopicOf Centaurea_maculosa.
- Centaurea_maculosa name "Centaurea maculosa".