Which of the following is not the name of a tree?

The correct option is C

Porcupine

The correct option is C.

Explanation of correct option:

1. Porcupines are large rodents with coats of sharp spines.
2. With the help of these spines, they protect them against predation.

Explanation of incorrect option:

Option A

1. A teak is a large hardwood tree.
2. It is particularly valued for its durability and water resistance.

Option B

1. Sal is the second important timber tree.
2. It is a dry deciduous tree.

Option D

1. Kachnar is identified as an orchid tree.
2. The leaves of this tree have anti-ulcer properties.

Final answer: Porcupine is not the name of a tree.