Glabrous on the underside of the leaf, with short hairs on the branchlets.

[3] The mistletoe Korthalsella clavata uses Coprosma dumosa as a secondary host.

[5] dumosa means 'bushy' in Latin.

[3] Coprosoma dumosa may be identical to Coprosma tayloriae.

[6] It also hybridizes with other Coprosma species.