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''Polanisia dodecandra'' is a species of flowering plant in the ''Cleome'' family, Cleomaceae, known by the common name redwhisker clammyweed, or western clammyweed, although there are other ''Polanisia'' species called clammyweed. It is an annual plant that is found in many types of habitat throughout much of Canada and the United States. It can be found elsewhere as an introduced species. The plant, which grows from 1ft to 3ft tall (30–90cm), is hairy and sticky, with a smell described as "strong and rank". The leaves, about 2in (5cm) long, are made up of three 1in (2.5cm) leaflets. The flowers are borne in a cluster of about 20 at the top of the stem. White with purple bases, the individual flowers are about 1in (2.5cm) long, with numerous longer, whiskery stamens, and are most apparent in late June and early July. The fruits, slender capsules 1–2in (2.5–5cm) long, are filled with many small dark seeds. The scientific name of the genus derives from the fact that the plant has numerous stamens of unequal lengths〔 〕 (from Greek ''polys'', "many", and ''anisos'', "unequal"). The name of the species, ''dodecandra'' means "having 12 stamens".〔 There are several subspecies of 'Polanisia dodecandra'', including: * ''Polanisia dodecandra'' subsp. ''dodecandra'' - redwhisker clammyweed * ''P. dodecandra'' subsp. ''riograndensis'' - Rio Grande clammyweed (only found in Texas) * ''P. dodecandra'' subsp. ''trachysperma'' - sandyseed clammyweed. ==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「Polanisia dodecandra」の詳細全文を読む スポンサード リンク
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