What is a common characteristic of emblements?

Emblements refer specifically to crops that are cultivated by a tenant on rented land. A key principle of emblements is that they belong to the tenant-farmer who has cultivated them, even if the lease has ended. This allows the tenant the right to return to the property after the lease expires to harvest the crops that they planted. This right acknowledges the labor and investment the tenant has made in the crop.

The other options do not accurately describe emblements in this context. For instance, emblements can include annual crops rather than just perennial crops, which can confuse their classification. Emblements do not belong to the property owner, and their commercial value can vary significantly, contradicting the statement that they have no commercial value.