Theory:

Based on the uses and the economic values, plants can be broadly classified into the following.
Classification of plants based on uses:
1. Plants used as foods
Example:
Paddy, wheat, millets, pulses, vegetables like - carrot, beans, onion, tomato, and fruits like - orange, apple, guava, pomegranate.
2. Plants used as spices
Example:
Cinnamon, nutmeg, pepper, cardamom, clove etc.
 
spices-389914_960_720.jpg
A box of spices
3. Medicinal plants
Example:
Neem, tulsi, mint, aloe vera etc.
 
medicinal_plants.jpg
Medicinal plants
4. Plants used as fibre:
Example:
Hemp, jute, cotton, flax, coir etc.
 
Jute_Cultivation_and_Processing_Bangladesh_(4).JPG
Jute plant stem
5. Timber yielding plants:
Example:
Teak, pine, cedar, fir etc.
 
Teak-tree-plantation.jpg
Teak tree
6. Ornamental plants:
Example:
Rose, lavender, marigold, crotons, daffodil, and lily
 
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Rose plant
Important!
World food day is celebrated on \(16th\) of \(October\). The aim of celebrating the day is to promote the worldwide awareness on hunger, need to ensure food security, nutritious diet for all.
 
World food day is celebrated by the Food and Agriculture Organization (FAO) of the United Nations. The world food day adopts a different theme each year.
Reference:
https://upload.wikimedia.org/wikipedia/commons/thumb/5/53/Jute_Cultivation_and_Processing_Bangladesh_%284%29.JPG/512px-Jute_Cultivation_and_Processing_Bangladesh_%284%29.JPG
https://upload.wikimedia.org/wikipedia/commons/3/32/Teak-tree-plantation.jpg
flickr.com/photos/whitehouse45/49854267063