Question

Which tree is known as Coral tree?
A. Quercus
B. Dipterocarps
C. Erythrina
D. Ziziphus

Answer 1

Hint: A tree can be defined as a perennial plant which has elongated stem, branches and leaves. It is a woody plant. A coral tree can be defined as a tropical or subtropical shrub or tree which has red or orange flowers.

Complete Answer:
- Quercus robur or common oak belongs to the oak family and is found mostly in europe. The flowers are mostly yellowish to green in colour and not red.
- Dipterocarps are a family of 700 species of trees and they produce seeds which have 2, 3, or 5 wings. The tree flowers only once in 3 to 5 years.
- Erythrina is the scientific name of a coral tree which is a tropical and subtropical tree. Therefore, this is the correct option. It is famous for ornamental purposes owing to its red blossoms. It is often used as a windbreak and hedgerow.
- Ziziphus is also known as Christ’s thorn jujube is an evergreen plant which is found in tropical and northern Africa, western and southern Asia. The fruits and leaves of this tree have been used widely in ancient Egypt as medicine and food.

Thus, the correct option is C) Erythrina.

Note: The characteristics of coral tree is,
- They are showy, deciduous and spreading trees.
- They can reach a height of 18-25 m.
- They are shallow rooted and the roots explore around the upper 30cm of the soil.
- The trunk of the tree is fluted and the bark is grey to grey-green colour.