Eucalyptus rudis, Flooded gum, is a medium-sized tree with rough, dark and light grey bark; however, north of Perth it intergrades with Eucalyptus camaldulensis var. obtusa so the bark may be smooth and very similar to Eucalyptus camaldulensis. Leaves are stalked, alternate, ovate to orbicular 12 x 7 cm, slightly discolourous and dull grey-green. White flowers appear in winter to late spring.The tree is widespread from the Eneabba district (29° S.