Lake Nemrut caldera are the trees dwarf juniper ("Juniperus communis"), Norway maple ("Acer platanoides"), European mountain ash ("Sorbus aucuparia"), common buckthorn ("Rhamnus cathartica"), sessile oak ("Quercus petraea"), pedunculate oak ("Quercus robur"), white willow ("Salix alba"), and the shrubs coinwort cotoneaster ("Cotoneaster nummularius"), cherry plum ("Prunus divaricata"), grey willow ("Salix cinerea"), Greek juniper ("Juniperus excelsa"), breaking buckthorn ("Frangula alnus"), alder buckthorn ("Frangula alnus") and mahaleb cherry ("Prunus mahaleb"). Steppe-like vegetation is spread over wide areas in the caldera. Those are mainly species of milkvetch ("Astragalus"). Other subshrubs and herbaceous plants are prickly thrift ("Acantholimon"), sainfoin ("Onobrychis"), sheep's sorrel ("Rumex acetosella"), "Thymus", "Alyssum", sheep's
Sorbus aucuparia asymmetrical at the bottom. "S. aucuparia" foliage grows in May and turns yellow in autumn or a dark red in dry locations. Buds of "S. aucuparia" are often longer than 1 cm and have flossy to felted hairs. These hairs, which disappear over time, cover dark brown to black bud scales. The terminal buds are oval and pointed and larger than axillary buds, which are narrow, oval and pointed, close to the twig, and often curved towards it. "S. aucuparia" is monoecious. It reaches maturity at age 10 and carries ample fruit almost every year. The plant flowers from May