Greek xanthos — yellow, stemon — stamen.

Trees or shrubs. Leaves alternate or opposite. Flowers in dense terminal or axillary clusters, or solitary. Sepals 4-5, often unequal. Petals 4-5. Stamens numerous, free, much longer than the petals. Ovary with 2-6 chambers. Fruit a capsule.

Often grown in warmer districts as a street tree for the neat habit and attractive, generally yellow flowers.

About 45 species from SE Asia to New Caledonia and N Australia (13 species).

Seed.

Leaves mostly opposite; stamens free and much longer than the petals; flowers in clusters or heads.

Wilson (1990).

Source: Spencer, R. (2002). Myrtaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.