(D) In China rose $(Hibiscus \, rosa-sinensis)$, the corolla consists of $5$ petals. These petals are free from each other, which is termed as polypet

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(D) In China rose $(Hibiscus \, rosa-sinensis)$, the corolla consists of $5$ petals. These petals are free from each other, which is termed as polypetalous. The arrangement of petals in the floral bud, known as aestivation, is twisted, where one margin of each petal overlaps the next one. Therefore, the correct description is $5$, polypetalous, twisted.

Class 11 Biology Morphology of Flowering Plants Flower

Medium

Corolla in China rose are:

A
$5$, gamopetalous, contorted
B
$5$, gamopetalous, valvate
C
$5$, polypetalous, valvate
D
$5$, polypetalous, twisted

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Chapter

Morphology of Flowering Plants

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Flower

Select the correct matching $:-$

Column $I$ Column $II \&$ Column $III$

$(1)$ Hypogynous $(A)$ Gynoecium occupies highest position; $(X)$ Mustard,Brinjal,China rose

$(2)$ Epigynous $(C)$ Margin of thalamus grows upward enclosing ovary completely; $(Z)$ Guava,Cucumber

$(3)$ Perigynous $(B)$ Gynoecium situated in centre; $(Y)$ Plum,peach,rose

Column $I$	Column $II \&$ Column $III$
$(1)$ Hypogynous	$(A)$ Gynoecium occupies highest position; $(X)$ Mustard,Brinjal,China rose
$(2)$ Epigynous	$(C)$ Margin of thalamus grows upward enclosing ovary completely; $(Z)$ Guava,Cucumber
$(3)$ Perigynous	$(B)$ Gynoecium situated in centre; $(Y)$ Plum,peach,rose