What is the Difference Between Stem Tendril and Leaf Tendril?

The main difference between stem tendrils and leaf tendrils lies in their origin and structure. Here are the key differences:

Stem Tendrils:

• Derived from a part of a stem.
• Are branch modifications that help the plant to climb.
• Can be axillary tendrils, extra axillary tendrils, floral bud tendrils, and apical bud tendrils.
• Examples include pumpkin, cucumber, grapes, and watermelon.

Leaf Tendrils:

• Derived from a leaf, leaflet, or leaf part.
• Are leaf or leaflet modifications that emerge from leaf nodes and usually support the stem.
• Can be whole leaf tendrils, leaflet tendrils, petiolar tendrils, leaf tip tendrils, and rachis tendrils.
• Examples include sweet peas, wild peas, and Gloriosa.

Both stem and leaf tendrils are sensitive to touch, providing support and attachment for growing parts. They also play a role in supporting the plant as it climbs, helping it to stand erect and expose the maximum area to sunlight. In some cases, tendrils are used in cellular invasion by parasitic plants like Cuscuta, which twines around suitable hosts.

Comparative Table: Stem Tendril vs Leaf Tendril

Stem tendrils and leaf tendrils are both modifications of plant parts that help plants climb and provide support. However, they have some differences in their origin and structure. Here is a table comparing the two:

Both stem and leaf tendrils are green in color and contain chlorophyll, allowing them to perform photosynthesis. They are found in various climbing plants and provide support for the growing parts of the plant.