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''Antennaria rosea'' is a North American species of flowering plant in the daisy family known by the common name rosy pussytoes.〔 It is widespread across much of Canada including all three Arctic territories, as well as Greenland, the western and north-central United States, and the Mexican State of Baja California.〔(Biota of North America Program 2014 state-level distribution map )〕〔(Tropicos, specimen listing for ''Antennaria rosea'' Greene )〕 ''Antennaria rosea'' is a plant of many habitats, from dry to wet climates and low elevation to very high. It is a very morphologically diverse species; individuals can look very different. It is polyploid and exhibits apomixis; most all the plants are female and they reproduce asexually.〔Bayer, R. J. (1989). A taxonomic revision of the ''Antennaria rosea'' (Asteraceae: Inuleae: Gnaphaliinae) polyploid complex. ''Brittonia'' 41:1 53-60.〕〔 ''Antennaria rosea''is a perennial herb which grows to heights anywhere between about 10 and 40 centimeters. It has a network of short stolons by which it spreads, its method of vegetative reproduction. It forms a basal patch of woolly grayish leaves 1 to 4 centimeters long. The inflorescence contains several flower heads in a cluster. Each head is lined with wide, pointed phyllaries which are often rose in color, the trait that gives the species its name, but they may also be white, yellowish, or brownish. The species is dioecious, but since most of the individuals are female, most bear flower heads containing pistillate flowers. The fruit is an achene with a body less than 2 millimeters long and a pappus which may be 6 or 7 millimeters long. The plant often produces fertile seeds, but most individuals in most populations are clones.〔Bayer, R. J. (1990) Patterns of clonal diversity in the ''Antennaria rosea'' (Asteraceae) polyploid agamic complex. ''American Journal of Botany'' 77:10 1313-19.〕 Plants are sometimes fertilized with pollen from other ''Antennaria'' species, which may bring new genes into an ''A. rosea'' population, increasing the genetic diversity amongst the clones.〔〔(Flora of North America, Antennaria rosea )〕 ;Subspecies〔〔 *''Antennaria rosea'' subsp. ''arida'' (E.E.Nelson) R.J.Bayer *''Antennaria rosea'' subsp. ''confinis'' (Greene) R.J.Bayer *''Antennaria rosea'' subsp. ''pulvinata'' (Greene) R.J.Bayer *''Antennaria rosea'' subsp. ''rosea'' ==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「Antennaria rosea」の詳細全文を読む スポンサード リンク
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