Chobi is somewhat of an elusive term when applied to rugs. I guess the commonly accepted translation for the Persian word "Chob" is "wooded" or "of the earth", which implies the natural essence of "vegetable" dyes from roots, plants and other. This in itself can be very confusing if it is in fact natural dyes being used. Sweet in idea though to say the least, as in regards to the industry, I like to think of rugs as renewable, low impact forms of decoration. Better than the off-gases from production and deterioration of tufted and machine made carpets!
Many sellers call their rugs Chobi, which is an interesting transition from what traditionally had been identifying a rug by design, is now transformed into identifying rugs by their nature. I'd be interested to see the one online you mention. I guess in the larger scope of things, these Chobi rugs often implement antique Sultanabad, Egyptian, Oushak and even Agra designs. Most of which are often larger in print, allover patterns with use of connecting vines or branches between woven flowers.