Eucalyptus gamophylla is mallee that typically grows to a height of 1.5 to 7 metres (5 to 23 ft) and forms a lignotuber but sometimes has an almost prostrate habit.

[2][3][4][5][6][7][8] Eucalyptus gamophylla was first formally described by the botanist Ferdinand von Mueller in 1878 in his book Fragmenta Phytographiae Australiae.

[9][10] The specific epithet (gamophylla) means "marriage-leaved", referring to the bases of the opposite leaves being joined.

It has a range extending from the Mid West, Pilbara and Goldfields-Esperance regions of central Western Australia,[3] then extending east into central and southern areas of the Northern Territory[12] and the far north of South Australia.

When cultivated for the garden, it is bird attracting,[12] fast growing, requires very little maintenance and can provide plenty of aromatic cut foliage for flower arrangements.