The Ginkgo (Ginkgo biloba; in Chinese éŠâ¬Ã¦ÂÂ, pinyin romanization, yÃÂn xìng), frequently misspelled as Gingko, and also known as the Maidenhair Tree after Adiantum, is a unique tree with no close living relatives. The leaves are unique among seed plants, being fan-shaped with veins radiating out into the leaf blade, sometimes bifurcating (splitting) but never anastomosing to form a network. The extract of the Ginkgo leaves contains flavonoid glycosides and terpenoids (ginkgolides, bilobalides) and has been used pharmaceutically. It has many alleged nootropic properties, and is mainly used as memory and concentration enhancer, and anti-vertigo agent.
圖片編號:
10419863
拍攝者:
Urospetrovic
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標準授權 | 480 x 348 px | JPG | 13 點 |
標準授權 | 800 x 580 px | JPG | 15 點 |
標準授權 | 2033 x 1474 px | JPG | 18 點 |
標準授權 | 2904 x 2106 px | JPG | 20 點 |
標準授權 | 3321 x 2408 px | JPG | 22 點 |
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標準授權 | 4107 x 2978 px | TIF | 39 點 |
進階授權 | 4067 x 2949 px | JPG | 88 點 |
進階授權 | 4067 x 2949 px | JPG | 88 點 |
進階授權 | 4067 x 2949 px | JPG | 88 點 |