Euphotometric

Euphotometric

With the term euphotometric, in botany, we say of a leaf that orients the lamina in such a way as to receive the maximum of diffused light; for example, the leaves of the inner part of the canopy of a broad-leaved tree.
The term euphotometric derives from the Greek words eû ‘good’, phòs photós “light” and from metrikós, a derivation of métron ‘measure.
Ultimately, a euphotometric leaf is one that is oriented in such a way as to make the most of diffused light, as happens for many internal leaves of trees or plants with extended foliage.
In detail, you can have:
Photometric leaves; those that orient themselves to receive the maximum possible light or to avoid too strong light;
Photometric leaves; those that do not have the possibility of orienting the lamina;
Photometric pan leaves; those that orient themselves to receive diffused and direct sunlight, but protected against its excess.