Ginkgophytes

Definition

Ginkgophytes are a group of gymnosperms that includes the single extant species, Ginkgo biloba. These plants are known for their distinct fan-shaped leaves and resistance to pollution and pests.

5 Must Know Facts For Your Next Test

1. Ginkgophytes have only one living species, Ginkgo biloba.
2. They are often referred to as living fossils because they have remained relatively unchanged for over 200 million years.
3. Ginkgo trees are dioecious, meaning individual plants are either male or female.
4. The seeds of Ginkgo biloba are covered with a fleshy outer layer, which emits a foul odor when decaying.
5. Ginkgophytes were once widespread across the globe but now primarily exist in cultivation.

Review Questions

• What is the sole extant species of ginkgophytes?
• Why are ginkgophytes often referred to as living fossils?
• What characteristic distinguishes Ginkgo trees as dioecious?

Related terms

Gymnosperms: Seed-producing plants that do not form flowers or fruits, including conifers, cycads, gnetophytes, and ginkgophytes

Dioecious: Plant species having distinct male and female individuals

Living Fossil: An organism that has remained unchanged over millions of years and resembles its ancient ancestors