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Inula hirta
''Inula hirta'' is a perennial herbaceous plant belonging to the genus ''Inula'' of the Asteraceae family. The specific Latin name ''hirta'' refers to the type of hairiness (bristly and rough) of the plant.
==Description==
''Inula hirta'' reaches an height of . The stem is ascending, simple (unbranched) and cylindrical, the surface is striped and hairy. These plants are covered with stiff hairs, almost bristly and light in color. The underground portion consists of an oblique rhizome not too big of a light color. Average size of the rhizome: width , length .
All the leaves along the stem (''cauline'') are alternately arranged, irregularly toothed, erect, tomentose on both sides and hairy on the edge. They are usually laminar, leathery and rough. The base is rounded and the apex is obtuse. The average size of the leaves varies from of width to a length of . Lower leaves have an elliptical or elliptical-lanceolate shape and have a thin petiole. Their size is more or less similar to the cauline one. Upper leaves are sessile, ''amplexicaul'' (their base is embracing the stem) and more lanceolate.
The flowers are hermaphrodite The outer flowers are ligulate, bright yellow and feminine, while the inner ones are tubular, dark yellow and bisexual. The diameter of the flower varies from . The flowering period extends from May through late September. The fruits are glabrous achenes with hairy appendages (pappus).
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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