Oak

1. North America contains the largest number of oak species

1.1. The second greatest center of oak diversity is China

2. Many deciduous species are marcescent, not dropping dead leaves until spring

3. In spring, a single oak tree produces both male flowers (in the form of catkins) and small coon flowers.

4. The live oaks are distinguished for being evergreen, but are not actually a distinct group and instead are dispersed across the genus.

5. Oaks have spirally arranged leaves

6. An oak is a tree

7. There are approximately 600 extant species of oaks

8. some have serrated leaves

9. entire leaf with smooth margins

10. The fruit is a nut called an acorn, borne in a cup-like structure known as a cupule

11. Oak tree is a flowering plant.

12. Oakland is Land Of Oaks :D