Source: California Invasive Plant Council
URL of this page: http://www.cal-ipc.org/ip/management/plant_profiles/Asphodelus_fistulosus.php
Asphodelus fistulosus (onionweed)
Asphodelus fistulosus
Photo courtesy Joseph DiTomaso
Asphodelus fistulosus (onionweed) is an annual/perennial herb (family Liliaceae) found in dry, sandy and rocky places, as well as pastures, roadsides and waste places. Livestock avoid eating it, allowing it to create dense stands that crowd out more desirable forage species in pastures. It is primarily found along coastal regions of southern California.
Cal-IPC Inventory rating: Moderate
Cal-IPC Resources on Asphodelus fistulosus
- California Invasive Plant Inventory Assessment Form (pdf) - Information gathered by Cal-IPC on the impacts, rate of spread, and distribution of invasive plants in California. Does not include management information.
- Cal-IPC News - Articles from our quarterly newsletter. Each issue is available as a pdf. (None for this species.)
- Cal-IPC Symposium Proceedings - Presentations and papers from our annual Symposium. List of articles on Asphodelus fistulosus.
Cal-IPC News Articles
- None for this species.
Cal-IPC Symposium Proceedings
- DiTomaso, J. M. (2004). 2004 Cal-IPC Red Alert! New invasions, recent expansions, and a few others to be on the look-out for. California Invasive Plant Council Symposium 2004. Ventura, CA.
- Sanders, A. C. (1998). Invasive exotics in California: A perspective from inland Southern California. California Exotic Pest Plant Council Symposium '98. Ontario, CA.
Other Resources on Asphodelus fistulosus
- USDA PLANTS database - Federal database with information on identification and distribution, and links to websites in individual states.
- Jepson Online Interchange for California Flora - Information on taxonomy, biology, and distribution from the UC Berkeley Jepson Herbarium.
- CalFlora - Distribution information by county based on submitted observations and herbarium specimens.
- The Nature Conservancy Management Summary - Information compiled by TNC land managers. Photos included for some species.
- CalPhotos - Images of plants taken mostly in California.
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