venation

In simple venation patterns, one unfortunately placed air bubble could block up to 95% of the venation network, preventing water from flowing through the leaf.

This Angiosperm Terrestrial Revolution was in part driven by a unique innovation in angiosperm leaves: these present a netted hierarchical venation, which allows angiosperm to fix carbon dioxide in a much more efficient way.

Even the assignment to the subfamily Larentiinae is not entirely secure and is based on a few features like wing venation.

The copperplate lines are so exact they mimic the individual venation of feathers; the neck of a gyrfalcon takes on all the ripply realism of moiréd silk.

What was once just something we called elephant ears is now a high-falutin cultivar of alocasia or colocasia, truly stunning in size, leaf venation and sheer presence.