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Cornulaca monacantha
''Cornulaca monacantha'' is a species of flowering plant in the genus ''Cornulaca'', that is now included in the family Amaranthaceae, (formerly Chenopodiaceae). It is a desert plant found in the Middle East and the Sahara, and the southern end of its range is considered to delineate the edge of the desert. In Arabic it is known as ''had'' and ''djouri'', and the Tuareg people call it ''tahara''.〔 It was first described in 1813 by the French botanist Alire Raffeneau Delile.
== Description ==
''Cornulaca monacantha'' is a straggling, branched, woody shrub growing to a height of . The stubby bluish-green leaves are scale-like and clasp the greyish, wiry stems. They each have a single stiff spine at the tip, hence the specific name ''monacantha''. The leaves turn yellow or white when the plant is dead. The orange-brown flowers appear singly in the woolly leaf axils between August and November. The calyx and petals are spiny, the perianth lobes being linear and leathery, with jagged tips. One petal in each flower extends downwards in a long spine. The seeds are held vertically in an erect, flattened seed pod. The plant is wind resistant and has a long taproot.〔〔(【引用サイトリンク】title=''Cornulaca monacantha'' )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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