Cirsium arvense is a perennial species of flowering plant in the family Asteraceae, native throughout Europe and western Asia, northern Africa and widely introduced elsewhere. (wikipedia.org)
Cirsium arvense is a C3 carbon fixation plant. (wikipedia.org)
Given its adaptive nature, Cirsium arvense is one of the worst invasive weeds worldwide. (wikipedia.org)
Cirsium arvense is placed in the subtribe Carduinae, tribe Cardueae of the family Asteraceae. (wikipedia.org)
Cirsium arvense is one of the most economically important agricultural weeds in the world. (asu.edu)
Numerous variants of Cirsium arvense have been named based upon such features as pubescence, extent of leaf division, and spininess. (asu.edu)
Among the worst invasive species that are present at Hidden Springs wetlands are purple loosestrife ( Lythrum salicaria ), mis-named Canada thistle ( Cirsium arvense ), and reed canarygrass ( Phalaris arundinacea ). (boisefrontnature.com)
Large patches of purple-flowered Canada thistle ( Cirsium arvense ) grow at the edge of the marsh, interspersed with tall stalks of poison-hemlock ( Conium maculatum ) covered with small white flowers. (boisefrontnature.com)
Species1
Several factors contribute to species richness of the study site including perennial surface water amid arid surroundings, unregulated flood regimes, influences from surrounding floristic provinces, and variety in habitat types. (madreandiscovery.org)
Thistle3
Plants included in these permits are La Graciosa thistle (Cirsium scariosum var. (guadalupedunes.com)
Once a biodiverse meadow is established, you need collect seeds no longer - the successful plants will maintain themselves in variety. (johnsankey.ca)
Native1
our native Alder ( Alnus glutinosa ) and another Alder which could be either Grey Alder ( A. incana ) or Italian Alder ( A. cordata ), it being difficult to differentiate between the latter two without reference to leaves which had not yet sprouted. (blogspot.com)
Alnus1
Moist swales typically contain saturated organic soils and support partial to closed canopies of northern white-cedar ( Thuja occidentalis ), tag alder ( Alnus incana ), willows ( Salix spp. (msu.edu)
Subspecies1
The contiguous Organ Pipe Cactus National Monument, Cabeza Prieta National Wildlife Refuge, and the Tinajas Altas region within the Sonoran Desert in southwestern Arizona have a vascular plant flora of 736 taxa (species, subspecies, varieties, and hybrids) in 420 genera and 94 families. (swbiodiversity.org)