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Scientific name	Name	Description	Picture
Echinacea purpurea	Purple coneflower	This plant and other species of Echinacea have been used for at least 400 years by Native Americans to treat infections and wounds, and as a general "cure-all" (panacea). It is currently used for symptoms associated with cold and flu
Equisetum arvense	Horsetail	Dates back to ancient Roman and Greek medicine, when it was used to stop bleeding, heal ulcers and wounds, and treat tuberculosis and kidney problems.
Eriodictyon crassifolium	Yerba Santa	Used by the Chumash people to keep airways open for proper breathing. The US Forest Service profile for Eriodictyon crassifolium provides information on species distribution; taxonomic relationships; ecological and evolutionary considerations for restoration; growth form and distinguishing traits; habitat characteristics; projected future suitable habitat; growth, reproduction and dispersal; biological interactions; ecological genetics; seed characteristics, germination requirements and processing; and plant uses including agriculture, restoration, and traditional products, plus an extensive bibliography. It is part of Riverside-Corona Resource Conservation District's resource materials collection on native plant recommendations for southern California ecoregions.
Eschscholzia californica	Californian poppy	Used as an herbal remedy: an aqueous extract of the plant has sedative and anxiolytic actions.
Eucalyptus globulus	Eucalyptus	Leaves were widely used in traditional medicine as a febrifuge. Eucalyptus oil is commonly used in over-the-counter cough and cold medications, as well as for an analgesic.
Euonymus atropurpureus	Wahoo	Plant is a purgative and might affect the heart.
Euphorbia hirta	Asthma-plant	Used traditionally in Asia to treat bronchitic asthma and laryngeal spasm. It is used in the Philippines for dengue fever.
Euphrasia	Eyebright	Used for eye problems, mental depression, oxygenation and radiation poisoning.
Euterpe oleracea	Açai	Although açai berries are a longstanding food source for indigenous people of the Amazon, there is no evidence that they have historically served a medicinal, as opposed to nutritional role. In spite of their recent popularity in the United States as a dietary supplement, there is currently no evidence for their effectiveness for any health-related purpose.