Phyllis viscosaPhyllis viscosa is a flowering plant in the family Rubiaceae. It is smaller than Phyllis nobla of the same genus, with narrow, sticky leaves and short, dense inflorescence.DistributionTenerife: W, region, Los Silos, Cuevas Negras, Montes de Teno, Masca etc., cliffs in the lower zone up to at Cumbre de Masca.