Forming dense, efarinose cushions, stems clad with marcescent leaves, becoming bare with age. Leaves entire, obovate, obtuse to subobtuse, hairy, 3-4.5mm long, 1.3-1.7mm wide. Corolla yellow, 9-10mm diameter, tube 10-14mm long, broadly obcordate overlapping slightly emarginate lobes. Introduced from limestone cliffs, 2700-2800m on the Charee Pass between the Kuhrang and Bazoft Valleys in Bakhtiari Province, Iran, initially as an unnamed species. Provisionally called D. heterotricha, a name which was disseminated informally into various publications but never officially published; it was soon renamed as the provisional name was too similar to the unrelated subsection Heterotrichae. Has proven reasonably compliant in cultivation although specimens in excess of 19cm in diameter are rare. JLMS02-91, T4Z125, T4Z140. JJMZ04-49.
Reference: ALPINE GARDEN SOCIETY PLANT ENCYCLOPAEDIA