Orobanche valida valida Jeps. (1929:255)
Rock Creek broomrape
Taxonomy & Nomenclature
Synonyms: Orobanche ludoviciana var. valida (Jeps.) Munz in Bull. Torrey Bot. Club 57: 621 (1930 publ. 1931); Myzorrhiza valida (Jeps.) Holub in Preslia 62: 196 (1990); Aphyllon validum (Jeps.) A.C.Schneid. in PhytoKeys 75: 117 (2016)
Conservation Status
Last record (disputed): 2 June 1928 (Armstrong, 1983:17); 1929 (Ripley, 1975:44)
Rediscovered in: July 1979 by Wayne Armstrong (Armstrong, 1983:17; Smith & York, 1984:49 [as 1979])
Distribution
California, USA
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Jepson, W. L. (1929). Sertulum Californiense I. Madroño 1: 254-260.
Other references:
Armstrong, Wayne P. (1983). Searching for rare plants. II. Rediscovering the Rock Creek broomrape. Fremontia 11(1): 16-18.
Ayensu, E. S. and Defilipps, R. A. (1978). Endangered and Threatened Plants of the United States: 1-403. Smithsonian Institution and WWF-US, Washington DC.
Flora of North America Editorial Committee. (2019). Flora of North America North of Mexico 17: 1-737. Oxford University Press, New York, Oxford.
Heckard, L. R. and Collins, L. T. (1982). Taxonomy and Distribution of Orobanche valida (Orobanchaceae). Madroño 29: 95-100.
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]
Powell, W. R. (ed.). (1974). Inventory of rare and endangered vascular plants of California. Special Publication No. 1. California Native Plant Society. Berkeley. 56 pp.
Ripley, S. Dillon. (1975). Report on endangered and threatened species of the United States. House Document 94-51: 1-200 [44].
Smith, James Payne, Jr., and Berg, Ken. (1988). Inventory of rare and endangered vascular plants of California. Special Publication No. 1 (4th edition). California Native Plant Society. Sacramento. xviii + 170 pp.
Smith, James Payne, Jnr. (ed.) and York, Richard (DEM). (1984). Inventory of rare and endangered vascular plants of California. Special Publication No. 1 (3rd edition). Berkeley, California: California Native Plant Society. xviii + 174 pp.
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://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=13447