Question

The maidenhair tree is-
A. Pinus
B. Adiantum
C. Ginkgo biloba
D. Gnetum ula

Answer 1

Hint: The maidenhair tree is a very old species, and has fossils of about 270 million years ago. This tree is a native from China, and is cultivated widely, even in the early history of the humans. It is used in many traditional medicines as well as used as a source of food.

Complete answer:
• The Pinus is a type of conifer, belonging to the family of Pinaceae. This is an evergreen tree consisting of spirally grown branches that are conical or pyramidal in their appearance. Thus, option [A] is incorrect.

• The Adiantum is a fern which belongs to the family Pteridaceae. It is a kind of maidenhair fern, the nut in the question maidenhair tree is written. Thus, option [B] is incorrect.

• The Gnetum is a type of gymnosperm, which belongs to the family Gnetaceae. These are the evergreen tropical trees, lianas, and shrubs. In their xylem, vessel elements are present unlike other gymnosperms. Thus, option [D] is incorrect.

• The Gingko biloba is the oldest living tree species in the world. It is about 350 million years old. It is also termed a living fossil. ‘Gingko’ is a Chinese word, meaning, and silver apricot. This tree is also known as maidenhair tree, the term was given in England due to the appearance of its leaves which resembles to their native maiden fern.
Hence, the correct answer is option (C).

Note: The maidenhair tree helps in improving the cognitive function. It helps in promoting a good blood circulation to the brain as well as it protects the brain, and other nerves from any neural damage.