Ginkgo Biloba A deciduous, dioecious tree (Ginkgo biloba) native to China and having fan-shaped leaves and fleshy yellowish seeds with a disagreeable odor. The male plants are often grown as ornamental street trees. Also called maidenhair tree. Out of the many conflicting research results, Ginkgo extract may have three effects on the human body: it improves blood flow (including microcirculation in small capillaries) to most tissues and organs; it protects against oxidative cell damage from free radicals; and it blocks many of the effects of platelet-activating factor (platelet aggregation, blood clotting)[10] that have been related to the development of a number of cardiovascular, renal, respiratory and CNS (Central Nervous System) disorders. Ginkgo can be used for intermittent claudication