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Lycopus europaeus
''Lycopus europaeus'', common names gypsywort, gipsywort, bugleweed, European bugleweed and water horehound, is a perennial plant in the ''Lycopus'' genus, native to Europe and Asia, and naturalized elsewhere.〔(【引用サイトリンク】title=USDA GRIN Taxonomy )〕 Another species, ''Lycopus americanus'' has also been erroneously called ''L. europaeus''.〔(【引用サイトリンク】title=The Plant List: A Working List of All Plant Species, entry for ''Lycopus europaeus'' Walter )〕
==Description==
Gipsywort is a rather straggly perennial plant with slender underground runners and grows to a height of about . The stalkless or short-stalked leaves are in opposite pairs. The leaf blades are hairy, narrowly lanceolate-ovate, sometimes pinnately-lobed, and with large teeth on the margin. The inflorescence forms a terminal spike and is composed of dense whorls of white or pale pink flowers. The calyx has five lobes and the corolla forms a two-lipped flower about long with a fused tube. The upper lip of each flower is slightly convex with a notched tip and the lower lip is three-lobed, the central lobe being the largest and bearing a red "nectar mark" to attract pollinating insects. There are two stamens, the gynoecium has two fused carpels and the fruit is a four-chambered schizocarp.〔(【引用サイトリンク】title=Gipsywort: ''Lycopus europaeus'' )〕 The flowers are visited by many types of insects, and can be characterized by a generalized pollination syndrome.
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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