Common names: biddy-biddy
Acaena novae-zelandiae (biddy-biddy) is a herb/subshrub (stem succulent) (family Rosaceae) with white flowers found in the coastal ranges of California. A pale reddish colored burr is left after the flowers fall. It is native to Australia, New Zealand and New Guinea. It favors dunes, grasslands, and scrub and chaparral habitat. It can spreads via roots and by stem fragments. It disperses by burrs attaching to the fur and feathers of animals and clothing of humans.
Cal-IPC Rating: Watch
CDFA Rating: A*
Plant Risk Assessment
Plant Risk Assessment- An evaluation of the potential for a plant to be invasive in California.
Weed Management NotesNo Weed RIC Management Notes are available for this species. Check for information on other species in the genus on the Weed RIC site.
Cal-IPC Newsletter Articles
There are no newsletter articles associated with this species yet.
Cal-IPC Symposium Presentations
Presentations are linked where available. Where a presentation is not available, find more information by reading the abstract in the Cal-IPC Symposia Archive.
There are no Symposium presentations associated with this species yet.
Other Acaena novae-zelandiae Information
- CalPhotos - Images of plants taken mostly in California.
- Calflora - See the distribution of this species on Calflora's map of California.
- Jepson Online Interchange for California Flora - Information on taxonomy, biology, and distribution from UC Berkeley's Jepson Herbarium.
- CDFA - California official noxious weeds.
- USDA PLANTS Database - Federal database with information on identification and distribution, and links to websites in individual states.