Shoot Meristem

The apex of a shoot where cells actively divide to provide more cells that will expand and develop into the tissues and organs of the plant. Also called apical meristem. Related Images:

Woundwood – Callus

After wounding, callus forms, woundwood is a tough, woody tissue full of lignin that grows behind callus When woundwood closes wounds, then normal wood continues to form. Related Images:

Twig

A young stem (1-year-old or less) that is in the dormant winter stage (has no leaves). Related Images:

Vascular system

The internal structure of the stem that transports water, minerals, and sugars throughout the plant. Related Images:

Stem cutting

A section of a stem prepared for vegetative propagation, a cutting. Related Images:

Shoot meristem

The apex of a shoot where cells actively divide to provide more cells that will expand and develop into the tissues and organs of the plant. Also called apical meristem. Related Images:

Primary growth

Growth that occurs via cell division at the tips of stems and roots. Related Images:

Lenticel

A small opening on the surface of fruits, stems, and roots that allows exchange of gases between internal tissues and the atmosphere. Related Images:

Stoma

A minute opening bordered by guard cells in the epidermis of leaves and stems through which gasses pass. {They can be blocked by soap or chemical sprays.} Stomata allow the plant to breath. Related Images: