Eucalyptus is the dominant genus of woody plants in Australia, with more than 600 species. The largest Eucalypts can grow as tall as 100 meters. These plants often carry colourful flowers producing rich nectars for honeybees. Others yield valuable hardwood timber. Eucalypts are now grown widely outside Australia in landscaping and foresty efforts and are also popular house plants. Here in Iceland, succulent Eucalypts are especially popular indoor plants in the well-heated houses in Iceland.