ST. PAUL — Sarah Wellington thought she had everything squared away to register for Minnesota’s medical marijuana program.

Her multiple sclerosis fit the narrow list of conditions that qualify. Her neurologist was on board with trying medical marijuana. Just check back in a month and we’ll get your paperwork started with the state, she was told.

But the follow-up was a shock: Her clinic decided it doesn’t want a part in the state’s new program yet. Her primary care clinic doesn’t, either.

As Minnesota officials start signing up patients on Monday, Wellington’s predicament underscores a logistical hurdle for the state and the patients hoping to get the medicine come July. For all the talk about Minnesota’s medically based approach to marijuana, some hospitals, clinics and physicians are still unsure about its value as a treatment and are leery of sending clients to a medicine the federal government frowns upon.

“It kind of throws it in limbo,” Wellington, a St. Paul middle school teacher, said of her clinic’s denial. “Now I don’t know what to do.”