Plants are usually grouped into herbs, shrubs, trees, and climbers based on their height, stems and branches.
- Herbs are small plant which have soft stem.
- Shrubs are bushy and medium sized plants and they are somewhat bigger than herbs. Their branches start from just above the ground.
- Trees are tall and large plants with hard and woody stem.
- Plants with weak stem that cannot stand upright and spread on the ground are called creepers.