Some chemotherapy drugs are made from yew tree clippings.
(According to Debbie Coats, clinical information manager at Cancer Research UK, there are two common chemotherapy drugs developed from Yew trees: One of them, docetaxel (Taxotere), was first made from the needles of the European yew. The other, paclitaxel (Taxol) and was made from the bark of the Pacific yew.)