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Echinacea tennesseensis : ウィキペディア英語版 | Echinacea tennesseensis
''Echinacea tennesseensis'', also known as the Tennessee coneflower or Tennessee purple coneflower, is a flowering plant in the sunflower family, endemic to the cedar glades of the central portion of the U.S. state of Tennessee. .〔 ==Description== ''Echinacea tennesseensis'' is a herbaceous perennial plant growing to tall. The leaves are hairy, lanceolate, and arranged in a basal whorl with only a few small leaves on the flower stems. 〔(Flora of North America, ''Echinacea tennesseensis'' (Beadle) Small, 1933. Tennessee purple coneflower )〕 The flowers are produced in a capitulum (flowerhead) up to 8 cm (3.2 inches) broad, with a ring of purple ray florets surrounding the brown disc florets.〔 A noticeable characteristic is its generally erect ray flowers, in contrast to the more drooping rays of its most similar congener, ''E. angustifolia'' (widespread throughout the prairie of the central U.S.) and other common ''Echinacea'' species such as ''E. purpurea''.〔
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