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Sida cordifolia
''Sida cordifolia'' ('ilima, bala, country mallow, heart-leaf sida or flannel weed) is a perennial subshrub of the mallow family Malvaceae native to India. It has naturalized throughout the world, and is considered an invasive weed in Africa, Australia, the southern United States, Hawaiian Islands, New Guinea, and French Polynesia.〔(【引用サイトリンク】title=Invasive and Noxious Weeds )〕 The specific name, ''cordifolia'', refers to the heart-shaped leaf.〔
==Description==
''Sida cordifolia'' is an erect perennial that reaches tall, with the entire plant covered with soft white felt-like hair that is responsible for one of its common names, "flannel weed". The stems are yellow-green, hairy, long, and slender. The yellow-green leaves are oblong-ovate, covered with hairs, and long by wide. The flowers are dark yellow, sometimes with a darker orange center, with a hairy 5-lobed calyx and 5-lobed corolla.〔
As a weed, it invades cultivated and overgrazed fields, competing with more desired species and contaminating hay.
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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