Ginkgophyta
Ginkgo
Ginkgoopsida
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The fan-shaped leaves of this ancient ginkgo tree, now extinct, are similar to modern ginkgo leaves.
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Graphic by Kevmin (CC-BY-SA-2.0)www.amnh.org/
Ginkgo is a genus of highly unusual non-flowering plants. The scientific name is also used as the English name. The order to which it belongs, Ginkgoales, first appeared in the Permian,[4] 250 million years ago, possibly derived from “seed ferns” of the order Peltaspermales. The rate of evolution within the genus has been slow, and […] read more