50.3 MB (50.0 MB compressed)
5138 x 3425 pixels
43.4 x 29.0 cm ⏐ 17.1 x 11.4 in (300dpi)
MICHAEL CLUTSON / SCIENCE PHOTO LIBRARY MICHAEL CLUTSON / SCIENCE PHOTO LIBRARY
Ginkgo (Ginkgo biloba) leaves. Leaves from the Ginko, or Maidenhair, tree. Extracts from this plant are used in herbal medicine to improve blood flow to most organs and tissues of the body, particularly to the brain. Herbalists believe that maidenhair acts as a memory aid and concentration enhancer, and may help those with Alzheimer's disease. However, this effect has not yet been proven, and research is still ongoing (as of 2008).
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