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Echinochloa oryzicola

Echinochloa oryzicola

Echinochloa oryzicola

Echinochloa oryzicola

Echinochloa oryzicola

Echinochloa oryzicola

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ƒCƒl‰ÈƒCƒkƒrƒG‘®‚̈ê”N‘‚ŁAŠw–¼‚Í Echinochloa oryzicolaB‰p–¼‚Í Rice barnyardgrassB 
The Rice barnyardgrass (Echinochloa oryzicola) belongs to Poaceae (the Grass family). It is an annual herb that is widely distributed in the tropical and warm regions of the world, including various parts of Japan. It is a variety of "Baenyardgrass" (Echinochloa crus-galli), which grows in and around paddy fields and has a height of 40 to 90 cm. The stem is hairless with a slightly high knot at the top. The leaves are linear lanceolate, with stiff edges and white streaks. From August to October, conical inflorescences are borne on the shoot apex and large light green spikelets are attached. It is a paddy weed that is difficult to extinguish because the fruits are dropped before the ears of "rice" come out. 
[ãE’†‚P`‚Q] ‘åã•{ŽlžŠ“ëŽs´‘ê’†’¬‚ɂāA2004”N08ŒŽ08“úŽB‰eB
[’†‚R`‚SE‰º] “Þ—ÇŒ§¶‹îŽs‚ŽR‚ɂāA2005”N08ŒŽ22“úŽB‰eB 

Shu Suehiro
shu@botanic.jp