Answer to Question #297742 in Biology for Gu²

Question

Write brief notes on nodal anatomy and it's systematic value for plants

Answer 1

Nodes are the points on a stem where the buds, leaves, and branching twigs originate. They are crucial spots on the plant where important healing, structural support, and biological processes take place.

The base of a bud, leaf, twig, or branch is always attached to a node, so this is one easy way to find them.

Even without visible buds or leaves, you can tell where the node of a twig is by some signs that you will only see at a node:

• a scar in the wood where a leaf has fallen away
• A knob-like, slight fattening of the wood (think of a bamboo cane)
• In plants with hollow stems such as forsythia, smooth hydrangea, and bamboos, the nodes are solid