Question

Which of the following is an ornamental plant?
A. Bellis perennis
B. Artemisia annua
C. Ageratum conyzoides
D. Sonchus asper

Answer 1

Ornamental plants are plants that are grown for decorative purposes in homes, gardens and display in offices. Their cultivation is done using floriculture. They provide an aesthetic feel to the home. They are also referred to as garden plants. Though they are less functional, beauty is their main trait. Additionally, they provide shade in homes, malls and parks. They have also helped to maintain the quality of air. They are the backbone of the ornamental industry as selling ornamental plants has become profitable business.

Complete answer
Option A Bellis perennis : Bellis perennis is a European species. It belongs to the Asteraceae family. Its other names are English daisy, lawn daisy and common daisy. It is a perennial plant and it is an herb. It is a mainly used ornamental plant. It also has medicinal value, as it is used in treating muscle pain, rheumatism, eczema and broken bones. Its flowers are very attractive to the eyes and used as a bedding display.
Option A is correct.
Option B Artemisia annua : Artemisia annua is a medicinal plant, reported in China. It has been used as a traditional Chinese medicine for a long time. It is an herb from Asia. It was a constituent of herbal tea, but causing liver injury is a major concern. The derivatives of the plant are used in treatment of malaria.
Hence, Option B is not correct.
Option C Ageratum conyzoides : Ageratum conyzoides is native to Brazil. It is a herb. It is also a medicinal plant, which is used to treat fever, headache, burns, eye defects and rheumatism. It belongs to the family Asteraceae. It is an annual plant. It is very soft and aromatic. Goat weed is another name, used in Indonesia.
So, Option C is not correct.
Option D Sonchus asper : Sonchus asper has Prickly Sow Thistle as a common name. It is a summer annual herb. It is a perennial plant. It is native to Europe, Asia and Africa. The stem of the plant releases milky fluid when cut. It produces yellow ray flowers. The leaves are edible and the plant is used as a nutritious vegetable.
Option D is not correct.

Hence, Option A) is the correct answer.

Note:
Flower, leaves, fruits and stems of a plant can be used as an ornament. Color also matters in the selection of ornaments. Floriculture is the study of studying ornamental plants. The sweet-smelling nature of ornamental plants help in the mental well-being of people. Tall ornamental plants, when placed near to buildings, can break the wind. They are also used as a screen for a building from the eyes of strangers. Fragrance of the flowers of ornamental plants can help to acquire a calm mind.