Diagram of the Formative Layers as Seen in an Onion Cross-Section
This illustration depicts the cross-section of an onion. Though often mistaken for a root vegetable, onions actually belong to the same family as leafy greens and stem vegetables. This diagram allows you to identify the parts that make up an onion.
Diagram of an onion with leaf blade and leaf sheath
This illustration depicts the entire onion as a diagram. In addition to the cross-section shown above, it illustrates the leafy part, known as the leaf blade. This illustration allows you to visually confirm whether the onion you typically see is the part above ground.
How to Use the Diagram: Reference Examples
Below are examples illustrating how the materials in the above diagram might be used. Using schematic diagrams to visualize aspects that words alone cannot fully convey makes the information significantly easier to understand.
Reference Example #1
Reference example using the diagram showing the formation parts of an onion cross-section.
This material allows you to identify the parts of the onion commonly used for food—specifically, which parts are leaves and what kind of leaves they are—by labeling them in the cross-section. After indicating the parts and their names, it enables visual confirmation and can also be used to explain their uses.
Reference Example #2
Reference example using the “Diagram of an Onion with Leaf Blades and Sheaths.”
By clearly distinguishing and labeling the leaf blades and sheaths, this diagram also serves to illustrate that leaves have various functions, each with its own specific terminology. It visually shows which part of the leaf corresponds to the section typically consumed as food.
