Answer:
Sunflower is not a
flower, but it is a kind of inflorescence called capitulum in which thereceptacle
is flattened. It bears numerous sessile and small florets. The youngest floret
isin the center and oldest lies at the periphery. Whole cluster of florets gets
surrounded bybracts, known as involucre.
Two kinds of florets
are recognised in sunflower
(i) Ray
Florets Arranged on the rim of receptacle having distinct yellow and strap
shapedpetals. These florets are female, sterile and are always zygomorphic and
may bearranged in one or more whorls.
(ii) Disc
florets Grouped in the center, bisexual and actinomorphic.
You need to login to perform this action.
You will be redirected in
3 sec
