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''Chelone obliqua'' , with the common names Red turtlehead, Pink turtlehead, or Rose turtlehead, is a herbaceous perennial plant belonging to the family Plantaginaceae. This uncommon wildflower is endemic to the United States, and is native to the Midwestern United States and Southeastern United States.〔(United States Department of Agriculture plants profile )〕 The three common names come from the bloom colors, yet they may even appear in other colors such as purple or white. When blooming, the flower is said to resemble the head of a turtle. ==Description== ''Chelone obliqua'' is an herbaceous perennial plant, that grows to a height of 2 to 3 feet and can spread out in 1 to 2 feet. The central stem is light green, smooth and hairless, and cylindrical; there are pairs of opposite leaves along the sides that tend to droop. Its leaf blades are lanceolate to broadly lanceolate, hairless, and serrated along their margins. The upper blade exhibits a dark green surface, while the lower blade surface is a paler green. A petiole is arising from the base of each leaf blade. It blooms later than some herbaceous perennials, in mid to late summer. The flowers are tubular 2-lipped blooms, with a small yellow beard inside each lower lip. There is no floral scent and are cross pollinated by bees and attracted to butterflies. An ovoid seed capsules evolves subsequent to the corollas of the flowers turning brown and falling off. The seeds capsules are initially light green and uncovered (no coating), and later turns brown and splits open to release the seeds. It has a rhizome root system, with occasional vegetative colony growth.〔 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「Chelone obliqua」の詳細全文を読む スポンサード リンク
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