Broom

Broom, also called common broom or Scotch broom, is a hardy evergreen shrub with ridged green stems, small three-part leaves, golden yellow flowers in spring and summer, and black seed pods that burst open with a crack. Wikipedia says it is native to Europe and is invasive in North and South America. Cunningham calls it masculine, with Mars and air, and lists purification, protection, wind spells and divination. He has it hung in the home to keep evil out, and an infusion sprinkled through the house to exorcise poltergeists. Throwing it into the air raises the winds, and burning it and burying the ashes calms them. Kynes adds the Sun and Aries, and says a bride in northern Scotland kept a branch in her room the night before a wedding to ensure fertility. She has several branches used like a broom to sweep an unwanted thing away. Cunningham, Kynes and Wikipedia all record hazards, set out in the safety notes.