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Digitalis purpurea : ウィキペディア英語版 | Digitalis purpurea
''Digitalis purpurea'' (foxglove, common foxglove, purple foxglove or lady's glove) is a species of flowering plant in the genus ''Digitalis'', in the family Plantaginaceae, native and widespread throughout most of temperate Europe. It is also naturalised in parts of North America and some other temperate regions. The plants are well known as the original source of the heart medicine digoxin (also called digitalis or digitalin). ==Description== ''Digitalis purpurea'' is an herbaceous biennial or short-lived perennial plant. The leaves are spirally arranged, simple, 10–35 cm long and 5–12 cm broad, and are covered with gray-white pubescent and glandular hairs, imparting a woolly texture. The foliage forms a tight rosette at ground level in the first year. The flowering stem develops in the second year, typically 1 to 2 m tall, sometimes longer. The flowers are arranged in a showy, terminal, elongated cluster, and each flower is tubular and pendent. The flowers are typically purple, but some plants, especially those under cultivation, may be pink, rose, yellow, or white. The inside surface of the flower tube is heavily spotted. The flowering period is early summer, sometimes with additional flower stems developing later in the season. The plant is frequented by bees, which climb right inside the flower tube to gain the nectar within. The fruit is a capsule which splits open at maturity to release the numerous tiny (0.1-0.2 mm) seeds.
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「Digitalis purpurea」の詳細全文を読む
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