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Leonurus cardiaca
''Leonurus cardiaca'', known as motherwort, is an herbaceous perennial plant in the mint family, Lamiaceae. Other common names include throw-wort, lion's ear, and lion's tail. Lion's tail also being a common name for ''Leonotis leonurus'', and lion's ear, a common name for ''Leonotis nepetifolia''. Originally from Central Asia and southeastern Europe, it is now found worldwide, spread largely due to its use as a herbal remedy.
==Description==
''Leonurus cardiaca'' has a squarish stem which is clad in short hairs and is often purplish, especially near the nodes. The opposite leaves have serrated margins and are palmately lobed with long petioles; basal leaves are wedge shaped with three points while the upper leaves have five. They are slightly hairy above and greyish beneath. Flowers appear in leaf axils on the upper part of the plant and have three-lobed bracts. The calyx of each flower is bell-shaped and has five lobes. The corolla is irregular, long, fused, long-tubed with two lips. The upper lip is convex and covered with white hairs and the lower lip is three-lobed and downward-curving and spotted with red. The flowers are pink to lilac in colour often with furry lower lips. There are four stamens, two short and two longer, and the fruit is a four-chambered schizocarp. The plant grows to about in height and blooms during July and August.〔(【引用サイトリンク】title=Motherwort: ''Leonurus cardiaca'' )〕
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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