caucasicum is a species name, "of the Caucasus." Some genera associated with this name are:
Flora Erythronium caucasicum, a bulbous perennial Rhododendron caucasicum, an alpine variety of rhododendron Sempervivum caucasicum, a succulent plant Symphytum caucasicum, an ornamental plant Trifolium caucasicum, a clover Tripleurospermum caucasicum, an aster
Fauna
Insects, arthropods Chrysotoxum caucasicum, a hoverfly Rhagium caucasicum, a beetle Sceliphron caucasicum, a wasp Xestobium caucasicum, a beetle Zodarion caucasicum, an ant-eating spider
Mammals Elasmotherium caucasicum, an extinct giant rhinoceros