Photo: Leonurus japonicus 1.

Flowering tops. MTT Karila research station, Mikkeli, Finland. Planted. 2001-08-13.
Leonurus japonicus Houtt. Engl.: honeyweed, Siberian motherwort, Chinese motherwort. Deu.: Sibirisches Herzgespann, Chinesisches Herzgespann. TCM: yi mu cao, yi mu ts'ao. Bot. syn.: Leonurus artemisia (Lour.) S. Y. Hu, Leonurus artemisia auct. non Lour., Leonurus heterophyllus Sweet, Leonurus sibiricus auct. pl., Stachys artemisia Lour.
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Photo: Leonurus japonicus 1.