Which is the only living representative of Sphenopsida that has an underground, creeping and perennial rhizome that gives off aerial as well as underground branches?

Question

Question

This question was previously asked in

SSC CGL 2023 Tier-I Official Paper (Held On: 14 Jul 2023 Shift 4)

Answer 1

The correct answer is Equisetum.Key Points

The correct answer is option 4, Equisetum, which is commonly known as horsetail or scouring rush.
Equisetum has an underground, creeping and perennial rhizome that gives off aerial as well as underground branches.
It is the only living representative of Sphenopsida, a group of vascular plants that were dominant during the Carboniferous period.
Adiantum, also known as maidenhair fern, belongs to the group of ferns and does not have an underground rhizome.
- It has delicate fronds and is commonly grown as an ornamental plant.
Dryopteris is another group of ferns that does not have an underground rhizome.
- It is commonly known as wood fern and is also grown as an ornamental plant.
Selaginella, also known as spike moss, is a group of plants that are similar to ferns but have smaller leaves and are adapted to grow in dry environments.
- They do not have an underground rhizome.

Additional Information

Equisetum is a unique plant that has been used for medicinal purposes for centuries.
- It contains silica and other minerals that are believed to have anti-inflammatory and diuretic properties.
Adiantum is also used in traditional medicine to treat respiratory and digestive problems.
- It is also used in hair care products because of its high silica content.
Dryopteris is commonly used in landscaping because of its attractive foliage and tolerance to shade.
Selaginella is used in terrariums and indoor gardens because of its small size and unique appearance.