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Desmodium illinoense
''Desmodium illinoense,'' common name Illinois tick-trefoil, is a plant species native to the central part of the United States including much of the Great Plains and Great Lakes regions. It also occurs in south-central Canada. It prefers sun-lit locations in grasslands.
''Desmodium illinoense'' is a perennial herb sometimes reaching a height of 1.2 m (4 feet), much of the shoot covered with hooked hairs. Leaves are trifoliate, up to 6.3 cm (2.5 inches) long. Leaflets are rounded, with a blunt tip. Flowers are white to lavender with a few white spots near the center. Seed pods are of the variety called "loments," constricted between the seeds so that when the pod is ripe it can break easily into 1-seed segments. These are covered with hooked hairs so that they can easily become attached to fur or to clothing and be carried some distance before falling to the ground and germinating.〔(Gray, Asa. Proceedings of the American Academy of Arts and Sciences 8: 289. 1870. )〕〔(Illinois Wildflowers, Illinois Tick Trefoil, John Hilty )〕〔Great Plains Flora Association. 1986. Flora of the Great Plains i–vii, 1–1392. University Press of Kansas, Lawrence.〕〔Voss, E. G. 1985. Michigan Flora. Part II Dicots (Saururaceae-Cornaceae). Bulletin of the Cranbrook Institute of Science 59. xix + 724.〕
==References==
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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