Term:
Secondary venation
Secondary venation
Definition:
The second order of venation in a leaf blade, i.e., the veins that arise from the midrib.
The second order of venation in a leaf blade, i.e., the veins that arise from the midrib.
Glossary Details:
Title: Venation features of the black oak. Photo by S. A. Mori.
Description: Venation features of Quercus velutina based on an unvouchered plant growing at the Alamo, San Antonio, Texas. This species has craspedodromous leaf venation.