Medicinal Herbs & Shrubs

Canada Yew

• Also known as ground hemlock, this evergreen forest shrub grows naturally in southern Canada and the Northern sections of the East and Midwest. Several Native American tribes use Canada yew extract to treat rheumatism, as well as female reproductive ailments like irregular menstruation and complications from childbirth, the Ontario Ministry of Natural Resources reports. After extensive testing, multiple scientists found that a compound in yew needles, paclitaxel, is successful in treating multiple forms of cancer, including breast, non-small cell lung and ovarian cancers. According to the Ontario Ministry of Natural Resources, pharmaceutical companies use this compound for this very purpose. Paclitaxel is only available from natural sources, but is only applicable as an extract or tea, since Canada yew is highly toxic when eaten.

Black Cohosh

• Black cohosh is a tall woodland plant that grows in the north and mid-sections of the Eastern and Central United States. While reputed to treat a wide variety of conditions, including digestive issues and respiratory ailments, black cohosh has properties similar to synthetic estrogen, but without the cancer risk and negative side effects associated with synthetic estrogen, according to the American Cancer Society. This is due to the herb's estrogenic properties, along with sedative and anti-inflammatory properties as well. Vomiting and nausea are symptoms of poisoning, caused by large or strong doses. Pregnant women should not take black cohosh, along with chronic disease sufferers.

Valerian

• Valerian is an invasive, flowering perennial weed native to the Northern United States. For those with insomnia or restless sleep, drinking valerian tea 45 minutes before bedtime helps enhance the quality of sleep and helps sleep come faster, according to HolisticOnline.com. Valerian's sedative effects do not cause daytime drowsiness, reducing physical abilities or decreasing the ability to concentrate. Like any sleep aid, you should not use valerian every night or for extended periods.

Lavender

• Lavender, a flowering short shrub found throughout the United States, is a well-known source for fragrance in aromatherapy, soaps, bath oils and lotions. Inhaling its scent calms and relaxes, confirmed by research cited by the University of Maryland Medical Center. Topically applied, lavender essential oil enhances sleep and reduces insomnia, as does lavender tea. The oil from its flowers contain antibacterial and antiviral properties. Lavender helps to soothe irritated skin when added to facial skin products. Some people may develop an allergic reaction to lavender, or experience nausea, chills, vomiting or headaches after inhaling lavender or absorbing it through the skin.