Question

what is the main vein of a leaf known as​

Answer 1

Answer:

the main vein of a leaf is known as midrib

Answer 2

There are two main types of net-vein patterns -- pinnate (featherlike) and palmate (palmlike or handlike). Pinnately veined leaves have one large central vein, called the midrib, which extends from the base of the blade to its tip. Other large veins branch off on each side of the midrib.