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Epipactis gigantea : ウィキペディア英語版 | Epipactis gigantea
''Epipactis gigantea'' is a species of orchid known by the common names stream orchid and giant helleborine. This wildflower is native to western North America from British Columbia to central Mexico.〔(Kew World Checklist of Selected Plant Families )〕 This is one of the most abundant orchids of the Pacific coast of North America.〔(Flora of North America, v 26 p 585, ''Epipactis gigantea'' )〕 ==Description== ''Epipactis gigantea'' is an erect perennial reaching anywhere from 30 centimeters to one meter in height. Its stems have wide or narrow lance-shaped leaves 5 to 15 centimeters long and inflorescences of two or three showy orchids near the top. Each flower has three straight sepals which are light brownish or greenish with darker veining, each one to two centimeters long. The two top petals are similar in shape and reddish-brown with purple veins. The lowest petal is cup-shaped with a pointed, tongue-like protuberance and is brighter red-brown and more starkly veined, often with areas of yellow. The fruit is a hanging capsule 2 or 3 centimeters long which contains thousands of tiny seeds. This plant grows in wet areas in a variety of habitats, including riverbanks, hot springs, and meadows. Unlike some of its relatives, this species is an autotroph. A distinctive race with burgundy colored foliage is known from The Cedars in Sonoma County California, an area of serpentine rock, and it is called forma rubrifolia (P M Brown).
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「Epipactis gigantea」の詳細全文を読む
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