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・ Eriogonum giganteum
・ Eriogonum gilmanii
・ Eriogonum gossypinum
・ Eriogonum gracile
・ Eriogonum gracilipes
・ Eriogonum gracillimum
・ Eriogonum grande
・ Eriogonum gypsophilum
・ Eriogonum heermannii
・ Eriogonum helichrysoides
・ Eriogonum heracleoides
・ Eriogonum hirtellum
・ Eriogonum hoffmannii
・ Eriogonum hookeri
・ Eriogonum incanum
Eriogonum inflatum
・ Eriogonum intrafractum
・ Eriogonum jamesii
・ Eriogonum kelloggii
・ Eriogonum kennedyi
・ Eriogonum latens
・ Eriogonum latifolium
・ Eriogonum libertini
・ Eriogonum lobbii
・ Eriogonum longifolium
・ Eriogonum longifolium var. gnaphalifolium
・ Eriogonum longifolium var. harperi
・ Eriogonum longifolium var. lindheimeri
・ Eriogonum luteolum
・ Eriogonum maculatum


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Eriogonum inflatum : ウィキペディア英語版
Eriogonum inflatum

''Eriogonum inflatum'', the desert trumpet, is a perennial plant of the family Polygonaceae. The plant possesses very small yellow or pink flowers and an inflated stem just below branching segments. Eriogonum: from the Greek ''erion'', "wool", and ''gonu'', "joint or knee", in reference to the hairy or woolly joints of some of the species of the genus, but not particularly ''inflatum''. It is found in the Mojave Desert and other deserts.
==Stems==
The swelling of the stems was assumed to have been influenced by the presence of gall insects, most notably of the genus ''Odynerus''. The female wasp produces a small hole on the inflated portion of the Desert Trumpet, packs the cavity with larvae and lays her eggs upon them, providing a food source, and a protected environment for the offspring. Irritation caused by this process was said to have enlarged the cavity over time. Recently, research performed by a world authority on the genus ''Eriogonum'', Dr. J. L. Reveal of the University of Maryland, College Park, revealed the swollen stem of ''Eriogonum inflatum'' is due to high concentrations of carbon dioxide in the solid stem and seems to be related to gas regulation.
Some insects utilize the swollen stem as a larder, but the inflation is ''not'' caused by the larval feeding of gall insects.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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