Stachys officinalis (L.) Trevis. [ Betonica officinalis L.]
      
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6 970558 Stachys officinalis (L.) Trevis. [125 140597 Betonica officinalis L.] Labiatae
W. Woodville, W.J. Hooker, G. Spratt, Med. Bot., ed. 3, vol. 3 : t. 128 (1832)