Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / anithaisro
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 |
Post New Answer View All Answers
what are the advantages of nitrogen and phosphorus in plant fertilizers?
what are the chemical constituents of the plant Cucumis prophetarum?
How to take a poison from oleander?
Name the Different classes of plants in the plant kingdom?
what is the ecological importance of mycophytes?
Describe the structure of a catkin with regard to sex and completeness of the flowers.
what is the importance of Phytochrome pigment?
How does the microtome cambridge work?
Explain cotyledons?
which type of poliination occurs in rose?
Explain the reproductice system in a female flower?
How is double fertilisation present in some gymosperms when it is a characteristic of angiosperms?
what is the relationship between soil pH and base saturation capacity?
What is pure botany?
what are the differences between sugar and sap?
