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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Helianthus smithii ： ウィキペディア英語版 Helianthus smithii ''Helianthus smithii'' is a rare North American species of sunflower known by the common name Smith's sunflower. It is native to the southeastern United States, in Tennessee, Alabama, and Georgia.〔(Biota of North America Program 2014 county distribution map )〕 ''Helianthus smithii'' grows in wet, mucky soils in marshes, ditches, and roadsides. It is an perennial herb up to 260 cm (over 8 feet) tall, spreading by means of underground rhizomes. One plant usually produces 1-15 flower heads, each containing 12–23 yellow ray florets surrounding 100 or more red, yellow, or brown disc florets. The oldest name for this plant is ''Helianthus parviflorus'' var. ''attenuatus,'' coined in 1884.〔(Gray, Asa. 1884. Synoptical Flora of North America 1(2): 278 ) as ''Helianthus parviflorus'' var. ''attenuatus,''〕 Heiser much later wanted to elevate the group to the rank of species, but could not use the name ''Helianthus attenuatus'' because it had already been used in 1929 for a plant from New Mexico.〔Watson, Elba Emanuel 1929. Papers of the Michigan Academy of Science, Arts and Letters 9: 416–417, plate 64〕 He chose to name it for two botanists, both having a hand in the history of the species, John Donnell Smith and Dale Metz Smith.〔(Heiser, Charles Bixler 1964. Rhodora 66(768): 346, in footnote )〕〔(Georgia Wildlife, Smith's sunflower ) includes photos, line drawing, references, description〕 ==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「Helianthus smithii」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.