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Stone root collinsonia canadensis , or Knob Grass, Hardhack, Heal-all, Rich Weed, medicinal plant. Hand drawn botanical vector illustration
A picture is showing Hardhack Flower, commonly known as Spiraea douglasii. This image shows a flower of Hardhack plant. It native to the western North America, and belongs to Rosaceae family, vintage line drawing or engraving illustration.
Spiraea salicifolia and Steeplebush or Spiraea tomentosa or Hardhack, vintage engraving. Old engraved illustration of Spiraea salicifolia (1) and Steeplebush (2