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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 Sidalcea oregana var. calva ： ウィキペディア英語版 Sidalcea oregana var. calva The Wenatchee Mountains checker-mallow, ''Sidalcea oregana'' var. ''calva'', is a very rare flowering plant variety that occurs only in five locations in the Wenatchee Mountains of Chelan County, Washington, United States. The plant has been placed on the Endangered species list. It is the rarest known plant in Washington state. ''S. oregana'' var. ''calva'' is a perennial herb in the mallow family Malvaceae. The species has a stout taproot that branches at the rootcrown and gives rise to several stems that are 20 to 150 centimeters (8 to 60 inches) tall. Plant stems vary from glabrous (lacking hairs and glands) to pubescent (hairy) or stellate (with star-shaped hairs) below and are finely stellate above. The leaves are somewhat thick and fleshy with long petioles (leaf stalks). The leaves are dimorphic (have two forms) with the lower (basal) leaves having more shallow lobes. The flowers have light- to deep pink petals 1 to 2 centimeters (0.4 to 0.8 inch) long. The flowers are borne on stalks ranging from 1 to 10 millimeters (0.04 to 0.4 inch) in length. The calyx (outer whorl of floral parts) ranges from uniformly finely stellate to bristly with a mixture of longer, simple to four-rayed, spreading hairs sometimes as long as 2.5 to 3 millimeters (0.1 to 0.12 inch). The inflorescence (arrangement of the flowers) consists of one to several loosely flowered racemes (stalked flowers arranged along a single stem) ''S. oregana'' var. ''calva'' is similar in appearance to ''S. oregana'' var. ''procera'', which occurs in the same geographic region. ''S. oregana'' var. ''calva'' can be distinguished from var. ''procera'' by the presence of the hairs on the margins of the calyx lobes and by its large, somewhat fleshy, basal leaves, which are smooth to the touch on both surfaces.〔 The historical range covered an area of approximately 17.7 by 4.8 kilometers (11 by 3 miles), extending southsoutheasterly from Leavenworth, Washington, to the area now known as Camas Meadows. Most of the historical records of this species are based upon occurrences in the Icicle and Peshastin Creek watersheds.〔 ==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「Sidalcea oregana var. calva」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.