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''Dierama pendulum'', commonly known as Hairbell, is a species of Iridaceae endemic to the Eastern Cape and first collected in 1772 by the Swedish naturalist Carl Peter Thunberg near Essenbos on the Kromme River or Kromrivier which flows down the Langkloof. In 1845 the genus ''Dierama'' was established by Karl Koch (1809-1879) based on this specimen. Before that the plant had been placed in various genera including ''Ixia'', ''Sparaxis'' and ''Watsonia''. 'Dierama' is Greek for 'funnel' and describes the flower's shape, while 'pendulum' is the Latin word for hanging suspended. The plant is some 2 metres tall with extremely slender and wiry stems, dividing into hair-like branches, gracefully curving under the weight of the flowers, and readily nodding in the lightest of breezes. As do all in the genus, it has a large flattened corm covered in layers of tunics made up of dry fibres. A new corm is formed every growing season, the old defunct corms remaining intact for many years, stacked one above the other. It grows in dense and fairly extensive tufts from Knysna to the Amatolas in the Eastern Cape and, when not in flower, the tall, slender, rigid leaves resemble those of a coarse sedge. The flower colour ranges from pink to pure white, while the tough, rounded capsule contains numerous angular brown seeds.〔http://www.plantzafrica.com/plantcd/dieramapend.htm〕〔(''Cape Flowers by a Lady'' )〕 The (Southern) Sotho people of the Kingdom of Lesotho use a decoction of the corm of Dierama pendulum as an enema with strongly purgative properties.〔"Medicinal and Poisonous Plants of Southern and Eastern Africa" 2nd edition,Watt J.M.& Breyer-Brandwijk M.G. pub.E.&S.Livingstone Ltd. 1962 p.504 (under synonym D.pendula Bak.)〕 Another attractive species from the Eastern Cape, ''Dierama pulcherrimum'' (Hook.f.) Baker was illustrated in ''Curtis's Botanical Magazine'' of 1866 on plate 5555 as ''Sparaxis pulcherrima''. ==Bibliography== *''Dierama: The Hairbells of Africa'' - Olive Mary Hilliard & Brian Laurence Burtt (1991). 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「Dierama pendulum」の詳細全文を読む スポンサード リンク
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