Calycadenia fremontii A.Gray (1859:101)

Fremont's calycadenia, Fremont's western rosinweed, Klamath calycadenia

Taxonomy & Nomenclature

Synonyms: Hemizonia fremontii A.Gray in Proc. Amer. Acad. Arts 9: 191 (1874); Hemizonia multiglandulosa var. sparsa A.Gray in Syn. Fl. N. Amer. 1(2): 312 (1884); Calycadenia ciliosa Greene in Fl. Francisc.: 421 (1897); Calycadenia elegans Greene in Fl. Francisc.: 423 (1897); Calycadenia pauciflora var. elegans (Greene) Jeps. in Man. Fl. Pl. Calif.: 1093 (1925); Calycadenia ciliosa f. alba D.D.Keck in Aliso 4: 112 (1958)

Conservation Status

Last record: 1937 (Ripley, 1975:40)

Since Rediscovered (fide Humphreys et al., 2019)

Previously considered possibly Extinct ("poEX") (Ripley, 1975:40).

Distribution

California & Oregon, USA

Biology & Ecology

Hypodigm

Media

References

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.

Hickman, J. C. (ed.). (1993). The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.

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]

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, OR.

POWO. (2024). Plants of the World Online (online resource). Facilitated by the Royal Botanic Gardens, Kew, United Kingdom. Available at: https://powo.science.kew.org/ [Accessed 29 November 2024]

Ripley, S. Dillon. (1975). Report on endangered and threatened species of the United States. House Document 94-51: 1-200 [40].

Roskov Y. et al. (eds.). (2018). Species 2000 & ITIS Catalogue of Life Naturalis, Leiden, the Netherlands.

Skinner, M. W. and Pavlik, B. M. (eds.). (1994). California Native Plant Society's Inventory of rare and endangered vascular plants of California. 5th edition. California Native Plant Society, Sacramento. 338 pp.

http://www.calflora.org/cgi-bin/species_query.cgi?where-taxon=Calycadenia+fremontii

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