Since hostas are monocots, they have parallel
leaf veins. The veins originate at the base of the central point of
the leaf blade so they are displayed in pairs. The veins that come
from the area where the petiole merges with the leaf blade will
curve outwards as the leaf widens and then begin to curve inwards
toward the tip of the leaf.
One of the characteristics used to distinguish
hosta cultivars is to count the number of pairs of veins. This, in
combination with one or more of the other traits such as a rippled
leaf margin may help to identify the cultivar name. Be aware that
the number of leaf veins listed should be that of a mature plant.
Younger, juvenile plants of the same cultivar may have fewer vein