what is sturcture of a composite flower?
The main characteristic of the Asteracea is the composite
or compound nature of their flowers, or more properly
their "inflorescences". An inflorescence is an arrangement
of flowers in a cluster. What we would call an
individual "flower" on an aster or sunflower is, in fact, a
dense cluster of many tiny flowers, called "florets". Look
closely at an aster, daisy, sunflower or any other member
of the Asteracea and you can see the individual florets.
Most of the florets, that form the centre or disc of
the "flower", are tubular in shape and have no petals.
Around the edge of the "flower" are florets which have a
single petal attached to their outer edge. This array of
single-petalled florets encircling the other densely packed
florets appears to us to be a single "flower". The whole
inflorescence sits in a cup-like structure called an
involucre, which is a whorl of bracts (scaly, leaf-like
structures) below the "flower".
Is This Answer Correct ? | 1 Yes | 1 No |
Actually I have studied that Height and weight are according to the age. Is it true? Ex Age : 20 yrs Weight: 43.5 Kg Height: 151.5 cm Is it true means pls tel after 20 yrs. if it is over-height/below height means what happen?
What was the first tree planted on the Earth?
what are the importance of weeds ?
WHICH FAMILY DOES pomegranate belong to?
what is the tallest tree?
Does time affect the stomata density of a leaf e.g young leaves, old leaves.?
James Lovelock suggests it is possible to synthesize food from air, water, carbon dioxide and nutrients using an input of energy from a nuclear power station. What would be the chemistry of this process.
what are the pomegrante diseases?
What is the impotance of Bryophytes in the ecosystem?
How do you determine if a molecule is polar or non-polar?
what is the description of ipomoea involucrata?
Describe the structure of a catkin with regard to sex and completeness of the flowers.