Plagiobothrys hystriculus (Piper) I.M.Johnst. (1932:32)
Bearded popcorn flower, Bearded popcornflower, Bearded allocarya
Taxonomy & Nomenclature
Synonyms: Allocarya hystricula Piper in Contr. U.S. Natl. Herb. 22: 87 (1920); Allocarya greenei var. hystricula (Piper) Jeps. in Man. Fl. Pl. Calif.: 853 (1925); Echinoglochin hystricula (Piper) Brand in Repert. Spec. Nov. Regni Veg. 21: 253 (1925)
Conservation Status
Last record: 1892 (Preston et al., 2010)
Rediscovered in May 2005 by B. Schafer and M. Widdowson (Preston et al., 2010)
Subsequent to its formal rediscovery in May 2005, misidentified specimens from previous decades were uncovered showing that it had in fact been collected after 1892 after all (Preston et al., 2010).
Distribution
California (Napa, Solano & Yolo counties), USA
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Piper, C. V. (1920). A study of Allocarya. Contributions from the U.S. National Herbarium 22: 79-113.
Other references:
California Native Plant Society. (2001). Inventory of rare and endangered plants of California (sixth edition). Rare Plant Scientific Advisory Commit-tee, David P. Tibor, Convening Editor. California Native Plant Society, Sacramento, CA.
Humphreys, Aelys M., Govaerts, Rafaël, Ficinski, Sarah Z., Lughadha, Eimear Nic and Vorontsova, Maria S. (2019). Global dataset shows geography and life form predict modern plant extinction and rediscovery. Nature Ecology & Evolution 3: 1043-1047. https://doi.org/10.1038/s41559-019-0906-2 [Supplementary Dataset 1]
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.
Kartesz, J. T. (1994). A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland
Messick, T. C. (1993). Plagiobothrys, pp. 386-390. In: Hickman, J. C. (ed.). The Jepson manual: higher plants of California. University of California Press,Berkeley, CA.
Preston, Robert E., Schafer, Brad D. and Widdowson, Margaret. (2010). Rediscovery of Plagiobothrys hystriculus (Boraginaceae) and notes on its habitat and associates. Madroño 57(4): 242-245. [Abstract]
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.