白欧石楠（Erica arborea）是一种常绿灌木，一般高约 1-4 公尺，有标本可达 7 公尺高。花色白，小花，长于酸性土壤。白欧石楠一般生长于环地中海地区的灌木地带，西至葡萄牙及加纳利和马德拉群岛、以至非洲紧连着的地带，例如：埃塞俄比亚高原、鲁文佐里山脉和喀麦隆山脉。

白欧石楠的木非常坚硬，而且抗热能力很强，所以常用于制作烟斗或刀柄。日常生活所讲的「石楠木」，一般都指白欧石楠，但有时亦指其他高身的欧石楠属树木，例如：葡萄牙石楠（Erica lusitanica)。

Erica arborea (tree heath) is a species of flowering plant (angiosperms) in the heather family, Ericaceae. There are disjunct populations in Africa including the Ethiopian Highlands, the mountains of Ruwenzori and the Cameroon Mountains. In Africa it is normally referred to as giant heather. It is native to the maquis shrublands surrounding the Mediterranean Basin and west to Portugal and the Canary and Madeira Islands. Naturalised populations occur in south-eastern Australia.