Located just below the tip or apex of something, especially a plant or an organ.
The word subapical is used in scientific or technical contexts, like biology or botany.
Examples:
The subapical bud is just below the top of the plant.
The subapical part of the leaf is where it connects to the stem.
The subapical region is important for the growth of the plant.
The subapical spot is where the plant is strongest.
The subapical area is the best part of the plant.
The subapical part of the tree is where the magic happens.