On Tuesday, Joe Rivas walked up the creaky, wooden ramp to the hayloft of a decades-old, white-painted barn near Phillips. Inside, hundreds of harvested cannabis plants hung on lines to dry. The image was something like an upside-down Christmas tree farm. Each is a variety of hemp, rich in the therapeutic substance cannabidiol, or CBD. They have little or no THC. That is, you can’t get high on anything grown here. Steps away, inside the century-old farmhouse, Joe’s partner, Marisa Budej, tended