The unfortunate situation for many rare plant species is that their protection lies only in their obscurity and remoteness from public attention. This is a problem because lack of public knowledge and concern about rare species may result in little public support for their conservation. On the other hand, excessive attention to charismatic and collectible species creates its own problems, and even if all visitors to a wild population refrain from collecting, visitation, trampling, and disturbance become a threat. Guards, fences, etc. are rarely a feasible protection strategy due obvious cost limitations. Law enforcement of regulations takes place after the fact, after the damage is done.
Education is the key.
Fortunately we have botanical gardens, zoos, aquaria, etc. which allow the public to see these organisms in protected zones or simulated natural environments. These are the public outreach collections. Education takes time, and also requires willingness to accept education. I am not talking about making data inaccessible. Site data IS currently accessible, but not through instantaneous and anonymous queries.