Eucalyptus nova-anglica, New England Peppermint, is a small to medium-sized tree to 25 metres. The bark is persistent on the trunk and larger branches, fibrous, thick, grey to grey-brown, shedding in short ribbons. Small branches are green. Juvenile leaves are opposite, orbiculate, straight, entire, glaucous, sessile, 8 cm long, 6 mm wide. Adult leaves are disjunct, narrow lanceolate or lanceolate, falcate, acute, basally tapered, dull to semi-glossy, green or grey-green, thick, concolorous and 7–15 cm long, 0.7–1.3 mm wide. Flowers are white or cream.