Source: California Invasive Plant Council
URL of this page: http://www.cal-ipc.org/ip/management/plant_profiles/Verbascum_thapsus.php
Verbascum thapsus (common mullein, woolly mullein)
Verbascum thapsus
Photo courtesy Joseph DiTomaso
Verbascum thapsus (common mullein, woolly mullein) is a biennial or annual forb (family Scrophulariaceae) that occurs throughout California, but is particularly abundant in dry valleys on the eastern side of the Sierra Nevada. High population densities have been observed in moist meadows and creek drainages near Mono Lake and Owens Valley. Common mullein is a host for insects that are themselves economic pests. Common mullein seeds can survive for 35 years or more in the soil.
Cal-IPC Inventory rating: Limited
Cal-IPC Resources on Verbascum thapsus
- 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.
- Species account from Invasive Plants of California's Wildlands - Includes biology and management information.
- Cal-IPC News - Articles from our quarterly newsletter. (None for this species.)
- Cal-IPC Symposium Proceedings - Presentations and papers from our annual Symposium. (None for this species.)
Cal-IPC News Articles
- None for this species.
Cal-IPC Symposium Proceedings
- None for this species.
Other Resources on Verbascum thapsus
- 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.
- Natural Resource Projects Inventory - State database with information on resource management projects throughout California. Query by the species of interest.
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