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''Physostegia'', the lionshearts, is a genus of flowering plants in the family Lamiaceae, native to North America (United States, Canada, northern Mexico).〔(Kew World Checklist of Selected Plant Families )〕〔(Biota of North America Program, 2013 county distribution maps )〕 They are erect rhizomatous herbaceous perennials inhabiting damp, sunny places. They grow up to tall with purple or pink tubular flowers in racemes in summer. The generic name comes from two Greek words, ''physa'' (a bladder) and ''stege'' (a covering), referring to the calyx, which becomes full of fruit when mature. ''Physostegia virginiana'' is the most common species, and is known as "obedient plant". ;Species〔 # ''Physostegia angustifolia'' Fernald - lower Mississippi Valley, southern Great Plains # ''Physostegia correllii'' (Lundell) Shinners - Texas, northern Mexico # ''Physostegia digitalis'' Small - Texas, Louisiana, Arkansas, Alabama # ''Physostegia godfreyi'' P.D.Cantino - Florida Panhandle # ''Physostegia intermedia'' (Nutt.) Engelm. & A.Gray - lower Mississippi Valley, southern Great Plains # ''Physostegia ledinghamii'' (B.Boivin) P.D.Cantino - Northwest Territories, Alberta, Saskatchewan, Manitoba, North Dakota # ''Physostegia leptophylla'' Small - Southeast from Florida to Virginia # ''Physostegia longisepala'' P.D.Cantino - Texas, Louisiana # ''Physostegia parviflora'' Nutt. ex A.Gray - western Canada (Manitoba to British Columbia), northwestern + north-central United States (Illinois to Washington) # ''Physostegia pulchella'' Lundell - eastern Texas # ''Physostegia purpurea'' (Walter) S.F.Blake - Southeast from Florida to North Carolina # ''Physostegia virginiana'' (L.) Benth. - much of eastern + central US + Canada; northeastern Mexico ==References== (University of Texas Herbarium ) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Physostegia」の詳細全文を読む スポンサード リンク
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