parietal placentation

9.9

Seeds grow on the inner wall of a flower's ovary, not on the central axis

noun
/pəˈraɪ.ɪ.təl pleɪˈsɛn.teɪ.ʃən/

Specialized

: placentación parietal

In plants with parietal placentation, the seeds line the inner wall of the ovary rather than the central axis.

Examples

The poppy is a classic example of a species exhibiting parietal placentation.
Understanding parietal placentation is important in the study of floral morphology and plant classification.
The parietal placentation in this plant species is quite unique.
Many flowering plants exhibit parietal placentation.
In plants with parietal placentation, the ovules attach to the inner walls of the ovary instead of clustering around a central axis.
The poppy is a prime example of a species known for its parietal placentation, which helps in seed development.
Many flowering plants, like the buttercup, demonstrate parietal placentation through their unique reproductive structures.

Surface Forms

parietal placentation singular

parietal placentations plural

Morphology

parietal + placentation

Both parts are semantically compositional: 'parietal' means relating to a wall or lining and 'placentation' denotes the placement/arrangement of ovules. Together they literally describe ovules attached to the inner walls of the ovary, so a learner who knows both constituents can derive the meaning despite the technical register.

Etymology

The term parietal placentation comes from parietal (meaning 'wall') and placentation (meaning 'place of seeds'). It describes seeds that grow along the inner wall of the ovary instead of in the center, so the name helps you remember 'seeds on the wall'.