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Lamiaceae
Physostegia
Physostegia purpurea
Physostegia purpurea
No common name
(Walter) S.F.Blake 1915 -
Rhodora 17: 134 (1915)
Specifications
Images
Synonyms
Dracocephalum obovatum
Elliott
Physostegia obovata
(Elliott) R.K.Godfrey ex Weath.
Physostegia virginiana var. obovata
(Elliott) A.Gray
Dracocephalum purpureum
(Walter) E.M.McClint. ex Gleason
Prasium purpureum
Walter