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Stylidium ensatum
''Stylidium ensatum'' is a dicotyledonous plant that belongs to the genus ''Stylidium'' (family Stylidiaceae) that was described as a new species by A.R. Bean in 2000, though the taxon had been noted by Rica Erickson in her discussion of ''S. muscicola'' variation in 1958. The specific epithet ''ensatum'' is from the Latin ''ensatus'', meaning sword-like, which refers to the shape of the floral throat appendages of this species. It is an erect annual plant that grows from 14 to 22 cm tall. Obovate or orbicular leaves, about 6-17 per plant, are scattered along the stems. The leaves are generally 7-12 mm long, 5.5-12 mm wide, and lack petioles. This species generally has one to three scapes and cymose inflorescences that are 8-16 cm long. Flowers are pink or mauve. ''S. ensatum'' is endemic to the area around Darwin in the Northern Territory of Australia. Its habitat has been reported as being a "''Melaleuca viridiflora''-''Lophostemon lactifluus'' forest with damp peaty soil." It flowers in the southern hemisphere from June to July. ''S. ensatum'' is most closely related to ''S. muscicola''. Its conservation status has been assessed as data deficient.〔Bean, A.R. (2000). A revision of ''Stylidium'' subg. ''Andersonia'' (R.Br. ex G.Don) Mildbr. (Stylidiaceae). ''Austrobaileya'' 5(4): 589-649.〕
== See also ==
* List of ''Stylidium'' species
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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