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''Allium lacunosum'' is a species of wild onion known by the common name pitted onion. It is endemic to California, where it is a common member of the flora in many types of habitat, from bayside to mountain to desert.〔( Calflora database: ''Allium lacunosum'' ) . distribution and info . accessed 1.28.2013〕〔(Jepson Manual: ''Allium lacunosum'' ) . accessed 1.28.2013〕 ==Description== The pitted onion, ''Allium lacunosum'', grows from a thick-coated yellowish-brown bulb one or two centimeters long. The stem reaches up to about in maximum height. There are usually two leaves which may be as long or longer than the stem. The inflorescence contains up to 45 dark-veined white to pale pink flowers, each less than a centimeter long. ;Varieties There are four varieties of this species, three of which are somewhat uncommon. *''Allium lacunosum'' var. ''davisiae'' — Southern California 〔(Jepson Manual: ''Allium lacunosum'' var. ''davisiae'' )〕〔(Calflora: ''Allium lacunosum'' var. ''davisiae'' ) . with images.〕 *''Allium lacunosum'' var. ''kernense'' — Southern Sierra, Mojave Desert.〔(Jepson Manual: ''Allium lacunosum'' var. ''kernense'' )〕〔(Calflora: ''Allium lacunosum'' var. ''kernense'' ) . with images.〕 *''Allium lacunosum'' var. ''lacunosum'' 〔(Jepson Manual: ''Allium lacunosum'' var. ''lacunosum'' )〕〔(Calflora: ''Allium lacunosum'' var. ''lacunosum'' )〕 *''Allium lacunosum'' var. ''micranthum'' — Central Coast interior ranges.〔(Jepson Manual: ''Allium lacunosum'' var. ''micranthum'' )〕〔(Calflora: ''Allium lacunosum'' var. ''micranthum'' ) . with images.〕 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「Allium lacunosum」の詳細全文を読む スポンサード リンク
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