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#morphology of flowering plants

2 public questions tagged with this topic.

Which type of aestivation is characterized by one petal overlapping the other in one particular direction?

Twisted aestivation, as seen in china rose, occurs when one petal overlaps the next one in a specific direction. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept, Topic: Plant structure, physiology and applications.

Which type of aestivation is found in the corolla of cotton?

Twisted aestivation, seen in cotton, occurs when one margin of the petal overlaps the next one. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.