Xanthium italicum

  • Xanthium italicum_img_0
    Xanthium italicum @ Kiba Park
  • Xanthium italicum_img_1
    Xanthium italicum @ Kiba Park
  • Xanthium italicum_img_2
    Xanthium italicum @ Kiba Park

Basic information

Flower Name
Xanthium italicum
Formal Name
Xanthium italicum
Alias
clotbur
Habitat
Americas
Morph
wild annual grass

Comment

Xanthium italicum is a wild annual grass of the department Asteraceae Xanthium genus native to Americas . After the war, was naturalized in Japan. Good stems with scattered red spots in the pale green branches and there are short spines. Broad egg-shaped with 3 shallow fissure and followed, and palmately lobed with branch leaves have serrated leaf edge. Flowers Monoecious Unisexual flowers of both sexes are. At the top of the flowers from the leaf axil male flowers give the female at the bottom. The male flowers are yellow on tufted small tube-shaped petals and stamens shedding finish the role. Degenerates female flowers with pale green petals, pistils only out of the masses. Dislodged from a branch with ripe fruit (fruit bract) which flowers after so far carried on the clothes of human or animal hair known as bug hittsuki.

Common name: :Xanthium italicum
scientific name:Xanthium italicum,
aka:clotbur, cocklebur, bug hittsuki, Igaonamomi(japanese),
origin: North and South America, southern Europe, Life distributions: seashore wastelands, height: 50-100 cm, stem: good broken branches and short spines and scattered red spot stem color: pale green, leaf shape: wide oval in 3 shallow crack-palmate, phyllotaxis: serrated, leaf arrangement: alternate, petiole: leaf length and same length as Monoecious Unisexual flowers, flowers, Out of place where flowers bloom: axillary inflorescences, in one inflorescence at the top of male flowers at the bottom female the pistil, anthesis: July-October, male flowers: yellow male tufted per role and shedding, male flower petal: petal is tube-shaped flowers in addition to stamens, male diameter:0.5~0.6cm, Female flowers: dumpling-shaped ones with pale green feathered thorn out of pistils. No female flower petal: Petal, oval only pistils, female diameter:0.6~0.7cm, fruits: achenes, fruits: fruit bract, fruit shape: surface grew dense thorn in hair hair: fruit and spines, projections of two beak-shaped tip, fruit length: 2 ~ 3 cm

Detailed information

Order
Asterales
Family
Asteraceae
Genus
Xanthium
Species
X. italicum
Flower type
Actinomorphic Flower
Flower array
Head
Petal shape
Cylinder
Leaf type
Palmate
Leaf edge
Serrated
Flowering place
Plain/fleet
Color
Green, Yellow
Season
JulAugSepOct
Height
50 ~ 100 [cm]
Diameter
0.5 ~ 0.7

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