Botanic Gardens Trust, Sydney, Australia

Australian Botanic Garden

Eucalyptus erythrocorys

The Australian Botanic Garden, Mount Annan - April

Common name red-cap gum, illyarie
Scientific name Eucalyptus erythrocorys F. Muell.
Family  Myrtaceae

Genus: From the Greek eu, well; calyptos, covered; in reference to the flower bud which has an operculum or cap.

Species: From the Greek erythro, red

Distribution Occurs in a very restricted area of south-western Western Australia on the coastal strip north of Perth from Geraldton to Shark Bay, however it is quite common within this range.
Native habitat Scrubby bushland on undulating sites, in shallow calcareous sand over coastal limestone.

A small tree or stout mallee.

Flowering/fruiting Summer to autumn, but also sporadically throughout the year.

Location in Garden

To see this species at Mount Annan, just follow Cunningham Drive to the Eudesmia Arboretum on your right.


The contrasting bright yellow flowers and red bud cap, along with its small size, make this tree an outstanding specimen for the garden or a large container. It needs an alkaline soil, plenty of sunshine and good drainage.




Eucalyptus erythrocorys

Eucalyptus erythrocorys

Eucalyptus erythrocorys