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Heterotheca grandiflora : ウィキペディア英語版 | Heterotheca grandiflora
''Heterotheca grandiflora'' is a species of flowering plant in the daisy family known by the common name Silk-grass goldenasteror telegraphweed. It is native to the southwestern United States (California, Nevada, Utah, Arizona)〔(Biota of north America Program 2014 county distribution map )〕〔(Calflora taxon report, University of California, ''Heterotheca grandiflora'' Nutt.. telegraph weed, telegraphweed )〕 and northwestern Mexico (Baja California),〔(SEINet, Southwestern Biodiversity, Arizona chapter ) photos, description, distribution map〕 but it can be found in other areas as an introduced species, such as Hawaii. It is often a roadside weed even where it is native. ''Heterotheca grandiflora'' is a tall, bristly, glandular plant exceeding a meter (40 inches) in height and densely foliated in hairy to spiny toothed or lobed leaves. Leaves are smaller and more widely spaced toward the top of the stem, which is occupied by an inflorescence of bright yellow daisy-like flower heads. The disc and ray florets drop away to leave a spherical head of achenes, each with a long white pappus. 〔(Flora of North America, Heterotheca grandiflora Nuttall, 1840. Silk-grass goldenaster )〕 ==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「Heterotheca grandiflora」の詳細全文を読む
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