An extremely common tree, most easily recognized by its highly aromatic leaves, deep yellow-green in color and oblong-lanceolate in shape. It sometimes has multiple trunks. It can grow into a massive tree; one specimen near Corona Peak has a trunk that is almost 4 m in diameter. Flowers are small, creamy yellowish-green, borne in small umbels. Fruits are a drupe, green when young and purplish when mature. California Bay has one unfortunate characteristic in that is one of the most notorious hosts of the pathogen (Phytophthora ramorum) which gives rise to Sudden Oak Death. The tree itself is only mildly affected by the pathogen but, if infected, it is capable of spreading the pathogen, with potentially lethal consequences, to any oak tree within a 100 m radius.