The Common Herbivern is a large herbivorous reptile native to the open grasslands of Shangrila. It is the closest living relative to the Grand Herbivern. Even though it was fully described after its larger, more corpulent cousin, this species is in fact the most basal representative of its family.

Depicted above is a male Herbivern, easily distinguished by its vibrant green scales and red crest. Females display much more muted colors, leaning towards browns and greys. After leaving the herd they were born in, males lead a solitary lifestyle. Once they've grown large enough, they will seek out a herd of their own, often having to fight the previous dominant male. These fights mostly involve males showing off their size and vibrant coloration, accompanied by loud, booming rumbles and hums. On rare occasions, when there's a face-off between two equally matched individuals, they will resort to violence. In such a case, headbutts and tail slams are common, the latter of which can cause grievous injuries. Once a clear winner is decided, he will take over the herd and mate with every available female, spawning several little wyvernlings.

Females typically lay a batch of 5 to 8 eggs in a series of dug-up depressions in the ground, followed by 4 months of brooding. They lay their eggs communally, using hot sand and decaying vegetation to incubate them. Herbiverns typically nest in elevated areas of the grasslands where there is plenty of sand and low-growing vegetation. Terrain like this helps to conceal the nest and protect it from flooding when the rains come. Females typically time their egg-laying in such a way that the babies hatch a few days after the first rains. This ensures that the newly hatched babies have plenty of fresh grass and herbs to eat.
During the rains, at the tail end of the incubation period, the whole herd will huddle around the nest to protect the eggs from direct exposure to the rain. Both the dominant male and the females will use their small wings as make-shift umbrellas for that exact purpose.

Herbiverns consume large amounts of vegetation every day. However, they are somewhat picky regarding what they eat. Instead of mowing down low-quality grasses, they will pick out the more nutritious herbs and plant pods. The wild Shangrilan Beanstalk is a staple of their diet, along with wild peppers, wild grains, and other such plants. The wyvenrs will gorge themselves on these high-quality foods in preparation for the dry season, when they have to resort to lesser-quality plants to survive.

The Herbivern's spiked tail is used not only during fights for dominance. It is its main method of defense against predators. If a Herbivern can't outrun a threat, it will lash out with its spiked tail, aiming either for the legs or wings of its oppressor. Such strikes can end in debilitating or even fatal wounds.

While this species of wyvern is not the biggest, nor the toughest, it's far from a pushover.