What Defines a Class of Bud?

[psteve]

It's all in the curing process.

Wrong.
There are three basic types of cannabis. Indica, Sativa, and Ruderalis.
ALL strains are one of these types, or a cross between them.

Haze is always sativa dominant.
Kush, comes from strains developed in the Kush mountains in the region of Pakistan and Afghanistan.
White usually denotes a strain based on the very stable White Widow, which is mostly Indica.
Blue usually means a strain that is based on Blueberry, which is also very stable, and has both Indica and Sativa traits.