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''Silphium'' is a genus of North American plants in the sunflower tribe within the daisy family.〔(Linnaeus, Carl von. 1753. Species Plantarum 2: 919-920 ) in Latin〕〔(Tropicos, ''Silphium'' L. )〕 Members of the genus, commonly known as rosinweeds, are herbaceous perennial plants growing to 0.5–4 m tall, with yellow (rarely white) flowerheads. The name of the genus comes from the Ancient Greek word for a North African plant whose identity has been lost, though it is known its gum or juice was prized by the ancients as a medicine and a condiment. ;Species〔(Flann, C (ed) 2009+ Global Compositae Checklist )〕〔(Biota of North America Program 2013 county distribution maps )〕 # ''Silphium albiflorum'' A.Gray – white rosinweed - TX # ''Silphium asteriscus'' L. – starry rosinweed - TX OK LA AR MO IL IN KY TN AL MS GA FL SC NC VA WV OH MD PA NY # ''Silphium brachiatum'' Gatt. – Cumberland rosinweed - TN AL GA # ''Silphium compositum'' Michx. – kidneyleaf rosinweed - TN AL GA FL SC NC VA WV # ''Silphium integrifolium'' Michx. – wholeleaf rosinweed - NM TX LA OK AR MO KS CO WY SD NE IA IL IN KY TN MS AL WI MI MA ONT # ''Silphium laciniatum'' L. – compassplant - NM TX LA OK AR MO KS CO SD NE MN IA IL IN KY TN MS AL WI MI VA PA NY ONT # ''Silphium laeve'' Hook. - WA ID # ''Silphium mohrii'' Small – Mohr's rosinweed - TN AL GA # ''Silphium perfoliatum'' L. – cup plant - NM TX LA OK AR MO KS CO SD ND NE MN IA IL INKY TN MS AL WI MI NC VA DE PA NY NJ CT RI MA VT NH ME ONT QUE NB # ''Silphium perplexum'' J.R.Allison – Old Cahaba rosinweed - AL # ''Silphium pinnatifidum'' Elliott – Cutleaf prairie dock - AL GA KY TN # ''Silphium radula'' Nutt. – roughstem rosinweed - KS MO AR OK TX LA # ''Silphium terebinthinaceum'' Jacq. – prairie rosinweed, prairie dock - IA MO AR MS AL GA SC NC VA WV TN KY OH IN IL WI MI NY ONT # ''Silphium ternatum'' Sessé & Moc. - Mexico # ''Silphium trifoliatum'' L. – whorled rosinweed - AL GA IN KY MD NC SC OH PA VA WV # ''Silphium wasiotense'' M.Medley – Appalachian rosinweed - KY TN ;Formerly included〔 numerous species now regarded as members of other genera: ''Berlandiera Verbesina'' ==Images== File:Silphium perfoliatum L. (8073308908).jpg|''Silphium perfoliatum'' File:CompassPlant.jpg|''Silphium laciniatum'' 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「Silphium (genus)」の詳細全文を読む スポンサード リンク
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