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Perideridia howellii : ウィキペディア英語版 | Perideridia howellii
''Perideridia howellii'' is a species of flowering plant in the carrot family known by the common name Howell's yampah.〔(USDA Plants Profile )〕 It is native to the mountains of Oregon and northern California, where it grows in moist soils, often near streams and rivers.〔(Jepson Manual Treatment )〕 It is a perennial herb which may exceed 1.5 metres in maximum height, its slender, erect stem growing from a cluster of many narrow fibrous roots measuring up to 15 centimetres long.〔 Leaves near the base of the plant have lance-shaped blades up to half a metre long which are divided into many leaflets made up of toothed, oval segments.〔 Leaves higher on the plant are similar, but generally smaller. The inflorescence is a compound umbel of many spherical clusters of small white flowers.〔 These yield ribbed, oblong-shaped fruits each about half a centimetre long.〔 ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Perideridia howellii」の詳細全文を読む
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