Common names: silkoak
Grevillea robusta (silkoak) is a tree (family Proteaceae) with yellow-orange to brown flowers and finely dissected leaves found in the central and south coast ranges of California. It is native to eastern Australia. It favors grasslands and riparian and bottomland habitat. It spreads via seeds and root suckers. Its winged seeds are dispersed by wind.Rating: Watch
- Plant Risk Assessment - An evaluation of the potential for a plant to be invasive in California.
- Cal-IPC News - Our quarterly newsletter. Each issue is available as a pdf.
- Cal-IPC Symposium Proceedings - Presentations and papers from our annual Symposium.
- Don't Plant a Pest! - Select your region to find non-invasive alternatives to ornamental species. Also see our statewide brochure on trees.
None for this species.