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Penstemon strictus : ウィキペディア英語版 | Penstemon strictus
''Penstemon strictus'', the Rocky Mountain penstemon, is a penstemon (common name beardtongue) with showy blue flowers. ==Description== This species is a herbaceous perennial with a few stems rising nearly straight up from a thick crown. The leaves are long and narrow, with stem leaves smaller and especially narrower than the basal leaves. The leaves are entire and smooth, or possibly downy near the petiole. The inflorescence is a spike (technically a thyrse of 4 to 10 verticillasters). The corolla is 24 to 32 mm (1 to 1.5 inches) long, deep blue with a violet tube, and smooth. The two upper petals point straight along the tube, like a porch roof (hence the seldom-used name "porch penstemon"). The seed capsules are 8 to 13 mm long.〔
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「Penstemon strictus」の詳細全文を読む
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