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Cauliflower (Brassica oleracea var. botrytis) belongs to the genus Brassica and family Brassicaceae, or the mustards. It is an annual plant that reproduces by seed. Cauliflower is a flowering plant with leaves wrapped around its stem forming a “head”. The head is a white inflorescence meristem and is sometimes called a “curd”.
Cauliflowers are grown in four groups across different regions of the world - Asia, Northwest Europe Biennial, Northern Europe Annual, and Italian. The most prevalent kind of cauliflower is white.
Key Terms: Cauliflower, Botany, Brussels Sprouts, Magnoliophyta, Broccoli, Angiospermae
Classification of Cauliflower
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The classification of cauliflower is given below:
| Kingdom | Plantae |
| Class | Magnoliopsida |
| Order | Capparales |
| Division | Magnoliophyta |
| Family | Brassicaceae |
| Genus | Brassica |
| Species | Brassica oleracea var. botrytis |

Cauliflower
Characteristics of Cauliflower
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The characteristics of Cauliflower are given below:
- Cauliflowers are annual plants that reach about 0.5 metre (1.5 feet) tall.
- They bear large rounded leaves that resemble collards (Brassica oleracea, variety acephala).
- As desired for food, the terminal cluster forms a firm, succulent “curd,” or head, that is an immature inflorescence (cluster of flowers).
- The broad leaves extend far above the curd and are often tied together before harvest to shade the curd and prevent discoloration.
- Commercially, white cauliflower is the most common, though orange, purple, green, and brown cultivars also exist.
- The plants produce cross-shaped yellow flowers and bear seeds in dry capsules known as siliques.
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| Cryopreservation | Keystone Species | Plumule |
| Phaeophyceae | Morphology of Flowering Plants | Algae |
| Binomial Nomenclature | Flora and Fauna | Genus |
Common Species of Cauliflower
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The most prevalent kind of cauliflower is white. Beta carotenes are found in orange cauliflower. Broccoflower is sometimes also called green cauliflower. Anthocyanins are the pigments responsible for the purple colour of purple cauliflower.
There are hundreds of varieties of cauliflower that come in various colors with white cauliflower being the most popular. The four main groups of cauliflower are:
- Italian species of cauliflower are the original cauliflower species that include Romanesco and various other colored cultivars.
- Northwest European cauliflowers are cultivars that are ready in the fall and are classed as late harvesters.
- Northern European varieties of cauliflowers are ready to harvest early in the season.
- Asian tropical varieties of cauliflowers are ones that grow well in warm weather.
Species of Cauliflower:
- White Cauliflower- White cauliflower (Brassica oleracea var. botrytis) is generally the type of cauliflower that has a pure white head of flower buds (curd) that is surrounded by green leaves.
- Green Cauliflower- Because of its green curd, the Green cauliflower can also be referred to as a broccoflower. This cauliflower cultivar looks like a typical cauliflower but has the color of broccoli.
- Purple Cauliflower- Purple cauliflowers are one of the most vibrant and striking large vegetables that are grown in the garden. The deep purple curd is surrounded by bluish-green leaves.
- Orange Cauliflower- Orange cauliflower gets its coloring from additional beta carotene, which also gives carrots their color. Orange cauliflower is called “cheddar” cauliflower because it has the color of cheese.

Brassica oleracea var. botrytis
Floral Formula of Cauliflower
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A floral formula is a numerical representation of the several floral components that make up a flower. It is used to denote different floral sections by describing a flower using various signs and symbols.
The Cauliflower formula is as follows:
% K 2+2 C4A2+4 G. (2-4)
Health Benefits of Cauliflower
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- Cauliflower is a vegetable belonging to crucifers. It has a high content of B-vitamins and moreover, they are rich in fibers.
- It can help in protecting the body against cancer as it is a great source of antioxidants and phytonutrients.
- It forms a rich fibrous diet therefore aids in weight loss and digestion functions also.
- Moreover, it contains choline that is required to enhance the memory and learning ability, and cauliflower is a good source of several other significant nutrients also.
- It also contains unique plant compounds that may reduce the risk of several diseases, including heart disease and cancer.
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Things to Remember
- The botanical name of Cauliflower is Brassica oleracea var. botrytis.
- Cauliflower is an annual plant that reproduces by seed.
- The edible part is the head (florets) which is used as a vegetable.
- Cauliflower plants are shallow rooted with a small, thickened stem.
- Cauliflower contains a high amount of fiber, which is important for digestive health and may reduce the risk of several chronic diseases.
- Cauliflower is a great source of antioxidants, which protect your cells from harmful free radicals and inflammation.
Previous Year Questions
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Sample Questions
Ques. What is the botanical name of Cauliflower? (2 Marks)
Ans. The botanical name of cauliflower is Brassica oleracea var. botrytis. Cauliflower is an annual plant that reproduces by seed. The edible part is the head (florets) which is used as a vegetable.
Ques. Cauliflower is only crop in groups of Cole crops in which the immediate stage of ___ lies between vegetative and reproductive stage? (1 Mark)
Ans. Curding
Ques. What is the kingdom of Cauliflower? (1 Mark)
Ans. The kingdom of Cauliflower is Plantae.
Ques. State the health benefits of cauliflower. (2 Marks)
Ans. It has a high content of B-vitamins and they are rich in fibers also. It can also help in protecting the body against cancer as it is a great source of antioxidants.
Ques. What is Taxonomy? (1 Mark)
Ans. Taxonomy can be defined as the science of naming , describing, and classifying all the species of living organisms, like- plants, animals, microorganisms etc.
Ques. The fruit of cauliflower is also known as. (1 Mark)
Ans. The fruit of cauliflower is also known as curd.
Ques. What angiospermae means? (2 Marks)
Ans. Angiosperms are plants that produce flowers and bear their seeds in fruits. They are the largest and most diverse group within the kingdom Plantae, with about 300,000 species. Angiosperms represent approximately 80 percent of all known living green plants.
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