$I.$ Standard petals $II.$ Wing petal $III.$ Keel petals
Above petals are found in
Valvate aestivation
Twisted aestivation
Imbricate aestivation
Vexillary aestivation
A typical angiosperm flower consists of four floral parts. Give the names of the floral parts and their arrangements sequentially.
Among flowers of Calotropis, tulip, Sesbania, Asparagus, Colchicum, sweet pea, Petunia, Indigofera, mustard, soybean, tobacco and groundnut, how many plants have corolla with valvate aestivation?
China rose is called shoeflower because
Tetradynamous condition is related to
$A$ : In head inflorescence florets are arranged centrifugally.
$R$ : There always occurs two types of florets in a head.