A stem connects the roots to the leaves, provides support, stores food, and holds the leaves, flowers, and buds.
The stem's anatomy consists of three tissue systems that work together to support, protect, and aid in nourishing the plant.
Growth in Stems
Plants undergo primary growth to increase length and secondary growth to increase thickness.
Stem modifications, either aboveground, underground, or aerial, enable plants to survive in particular habitats and environments.