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What is capitulum?
Capitulum is a kind of inflorescence found mostly in the family Asteraceae. It is characterized by the presence of two types of florets: ray florets and disc florets. It looks like a single large flower but is actually an inflorescence.Example: Sunflower.
What are Ray and Disc florets?
the common inflorescence of asteraceae is capitulum. the folwers of this inflorescence are called florets. there are two types of florets ie disc and ray florets. the basic difference between the two is that ray florets are unisexual and disc florets are bisexual.
are sunflower seeds fruit?
The sunflower seed is the fruit of the sunflower (Helianthus annuus). The term "sunflower seed" is actually a misnomer when applied to the seed in its pericarp (hull). Botanically speaking, it is more properly referred to as an achene. When dehulled, the edible remainder is called the sunflower kernel.Remember that sunflowers are Composite flowers, consisting of disc and (sterile) ray florets grouped together on a "flower head". Each disc floret has its own ovary and produces its own seed.Refer related link
What is the tiny individual flowers that comprise a single sunflower inflorescence are called?
florets
Why is Ray florets of sunflower described as neuters?
Because it has both male and female reproductive organs lacking
Are sunflower seeds nuts or seeds?
The sunflower seed is the fruit of the sunflower (Helianthus annuus). The term "sunflower seed" is actually a misnomer when applied to the seed in its pericarp (hull). Botanically speaking, it is more properly referred to as an achene. When dehulled, the edible remainder is called the sunflower kernel.Remember that sunflowers are Composite flowers, consisting of disc and (sterile) ray florets grouped together on a "flower head". Each disc floret has its own ovary and produces its own seed.Refer related link
What is the sunflowers division name?
headAnswer:First, the "Sunflower" is native to the Americas.The sunflower is comprised of many smaller flowers very close together, forming what is known as florets. These florets as a whole is called the head or flower of the sunflower. The florets, spiral forming the flower/head and can grow to as large as 15" (381mm) in diameter and up to 15 feet (4.57M) tall.
What are the parts of a cosmos flower?
The cosmos flower has leaves that occur in pairs. Its outer petals are broad ray florets, and its inner petals are disc florets.
Name the two types of flowers in composites and describe each?
Disc and ray florets
How many different kinds of sunflowers are there?
Sunflowers (Helianthus annuus) are annual plants native to the Americas, that possess a large inflorescence (flowering head).....What is usually called the flower is actually a head(formally composite flower) of numerous florets (small flowers) crowded together. The outer florets are the sterile ray florets and can be yellow, maroon, orange, or other colors. The florets inside the circular head are called disc florets, which mature into seeds.The florets within the sunflower's cluster are arranged in a spiral pattern. Typically each floret is oriented toward the next by approximately the golden angle, 137.5°, producing a pattern of interconnecting spirals where the number of left spirals and the number of right spirals are successive Fibonacci numbers. Typically, there are 34 spirals in one direction and 55 in the other; on a very large sunflower there could be 89 in one direction and 144 in the other.[1][2][3] This pattern produces the most efficient packing of seeds within the flower head.[4][5][6]
What is a type of variation?
Sunflowers (Helianthus annuus) are annual plants native to the Americas, that possess a large inflorescence (flowering head).....What is usually called the flower is actually a head(formally composite flower) of numerous florets (small flowers) crowded together. The outer florets are the sterile ray florets and can be yellow, maroon, orange, or other colors. The florets inside the circular head are called disc florets, which mature into seeds.The florets within the sunflower's cluster are arranged in a spiral pattern. Typically each floret is oriented toward the next by approximately the golden angle, 137.5°, producing a pattern of interconnecting spirals where the number of left spirals and the number of right spirals are successive Fibonacci numbers. Typically, there are 34 spirals in one direction and 55 in the other; on a very large sunflower there could be 89 in one direction and 144 in the other.[1][2][3] This pattern produces the most efficient packing of seeds within the flower head.[4][5][6]
What type of inflorescence is in a sunflower?
Sunflowers (Helianthus annuus) are annual plants native to the Americas, that possess a large inflorescence (flowering head).....What is usually called the flower is actually a head(formally composite flower) of numerous florets (small flowers) crowded together. The outer florets are the sterile ray florets and can be yellow, maroon, orange, or other colors. The florets inside the circular head are called disc florets, which mature into seeds.The florets within the sunflower's cluster are arranged in a spiral pattern. Typically each floret is oriented toward the next by approximately the golden angle, 137.5°, producing a pattern of interconnecting spirals where the number of left spirals and the number of right spirals are successive Fibonacci numbers. Typically, there are 34 spirals in one direction and 55 in the other; on a very large sunflower there could be 89 in one direction and 144 in the other.[1][2][3] This pattern produces the most efficient packing of seeds within the flower head.[4][5][6]
