Flower Database

Cirsium arvense

Basic information
Flower Name
Cirsium arvense
Formal Name
Cirsium arvense
Alias
西洋刺薊, Canada thistle, Creeping thistle, 西洋棘アザミ
Habitat
Europe
Morph
perennial wild grass
Comment
Cirsium arvense or creeping thistle(Cirsium arvense) is a perennial wild grass of the family Asteraceae naturalized from Europe. It has high reproductive ability, and it populates in the roadside, meadow, and wasteland. It is a dioecious strain, the upright hairless stem often branches. From summer to autumn, a large number of light brown head flowers will bloom with inflorescences on the tip of the stem. It is considered to be harmful weed because animals do not eat because there are sharp thorns in the leaves.
Name: Cirsium arvense, aka: Canada thistle, Creeping thistle, Place of Origin: Europe, Environment: roadside, Pastures, wastelands, plant height: 30 to 150 cm, leaves: alternate, leaf margin: shallow, inflorescence form: single apical flower, flower shape: head flower, flower color: light crimson, flower diameter: 1 to 2.2 cm, flowering period : July - September, dioecious strain, breeding method: species, rhizomes.
Detailed information
Order
Asterales
Family
Asteraceae
Genus
Cirsium
Species
C. arvense
Flower type
Actinomorphic Flower
Flower array
Solitary Inflorescence
Petal shape
capitate corolla
Leaf type
Pinnate
Leaf edge
Thorn-like
Flowering place
Plain/fleet
Color
Pink
Season
Jul Aug Sep
Height
30  ~ 150  [cm]
Diameter
1  ~ 2.2