Question:

Diadelphous stamens are found in :

Updated On: Nov 13, 2025

  • China rose and citrus

  • China rose

  • Citrus

  • Pea

Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is D

Solution and Explanation

To solve this question, we need to understand what "diadelphous stamens" refer to and which plant exhibits this feature.

Diadelphous stamens are a characteristic feature of certain flowering plants where the stamens (male reproductive part of the flower) are fused into two groups. Typically, this arrangement is observed in members of the family Fabaceae (the pea family).

Let's evaluate each option:

  1. China rose and citrus: China rose belongs to the Malvaceae family and has a monadelphous stamen arrangement (all stamens united into one group). Citrus plants belong to the Rutaceae family and do not have diadelphous stamens.
  2. China rose: As stated, China rose has monadelphous stamens.
  3. Citrus: Citrus plants have free stamens and not diadelphous.
  4. Pea: Pea plants belong to the Fabaceae family and have diadelphous stamens. In peas, nine stamens are fused together, and one is free; thus, forming two groups.

Based on the above reasoning, Pea is the correct answer because it is known for having diadelphous stamens.

This image illustrates the typical arrangement of diadelphous stamens in pea plants, where you can see the arrangement forming two groups.

Was this answer helpful?
2
0

Top Questions on Plant Kingdom

View More Questions

Questions Asked in NEET exam

View More Questions

Concepts Used:

Morphology of Flowering Plants

Morphology in flowering plants tells us that every plant has two systems such as a root system and a shoot system. The root system digs deep into the ground and structures a system of its own. On the other hand, the shoot system is the one that is above ground level and includes various plant parts. 

Root System

The descending part of the plant grows under the soil roots. During the germination process, the radicle from the seed grows earthward and branches out. The branches along with the primary root are called the root system. Roots lack chlorophyll and therefore they are not green in color. Roots are positively geotropic and hydrotropic, that is, they grow downwards ground and water, and negatively phototropic, which is growing away from light.

There are three types of root systems found in plants are as follows:

  1. TapRoot System
  2. Fibrous Root System
  3. Adventitious Root System

Shoot System

The stem is also an essential element of the plant. It is the ascending portion of the plant axis that bears branches, flowers, leaves, and fruits, as well as aiding in water and mineral conduction. It is the plant's aerial portion, brought about from an embryo's plumule or germinating seeds. Young stems are ordinarily green, but they finally turn woody and brown.