Plagiobothrys mollis vestitus (Greene) I.M.Johnst. (1923:75)
Petaluma popcorn flower
Taxonomy & Nomenclature
Conservation Status
Extinct (Rejmánek, 2018; Smith, 2018; Knapp et al., 2020, 2021)
Last record: 1880 (Smith, 2018; Knapp et al., 2021) [non-latest July 1880 collection cited by Johnston, 1932:26]; September 1882 (Johnston, 1932:26; Rejmánek, 2018 [as 1882])
Distribution
California, USA
Biology & Ecology
Hypodigm
Media
References
Johnston, Ivan M. (1933). Studies in the Boraginaceae, IX. 1. The Allocarya section of Plagiobothrys in the western United States. 2. Notes on various borages of the western United States. Contributions from the Arnold Arboretum of Harvard University III: 1-102.
Knapp, Wesley M., Frances, Anne, Noss, Reed, Naczi, Robert F. C., Weakley, Alan, Gann, George D., Baldwin, Bruce G., Miller, James, McIntyre, Patrick, Mishler, Brent D., Moore, Gerry, Olmstead, Richard G., Strong, Anna, Gluesenkamp, Daniel and Kennedy, Kathryn. (2020). Regional records improve data quality in determining plant extinction rates. Nature Ecology & Evolution 4: 512-514. https://doi.org/10.1038/s41559-020-1146-1
Knapp, Wesley M., Frances, Anne, Noss, Reed, Naczi, Robert F. C., Weakley, Alan, Gann, George D., Baldwin, Bruce G., Miller, James, McIntyre, Patrick, Mishler, Brent D., Moore, Gerry, Olmstead, Richard G., Strong, Anna, Kennedy, Kathryn, Heidel, Bonnie and Gluesenkamp, Daniel. (2021). Vascular plant extinction in the continental United States and Canada. Conservation Biology 35(1): 360-368. https://doi.org/10.1111/cobi.13621 [Supporting Information (Appendix S1)]
Rejmánek, Marcel. (2018). Vascular plant extinctions in California: A critical assessment. Diversity and Distributions 24(1): 129-136. https://doi.org/10.1111/ddi.12665
Smith, James P., jnr. (2018). California vascular plants: are some of them still out there? Botanical Studies 74: 1-4.
Walter, Kerry S. and Gillett, Harriet J. (eds.). (1998). 1997 IUCN Red List of Threatened Plants. Compiled by the World Conservation Monitoring Centre. Gland, Switzerland & Cambridge, UK: IUCN – The World Conservation Union. lxiv + 862 pp.
http://ucjeps.berkeley.edu/cgi-bin/get_cpn.pl?63900
http://vanishingflora.proboards.com/thread/3583/plagiobothrys-mollis-vestitus