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 to June (on occasion again in September) in many yellowish white corymbs that contain about 250 flowers. The corymbs are large, upright, and bulging. The flowers are between 8 and 10 mm in diameter and have five small, yellowish green, and triangular sepals that are covered in hairs or bare. The five round or oval petals are yellowish white and the flower has up to 25 stamens fused with the corolla to form a hypanthium and an ovary with two to five styles; the style is fused with the receptacle. Flowers of "S. aucuparia" have an unpleasant trimethylamine smell. Their