Crataegus okennonii

Taxonavigation

Taxonavigation: Rosales
Classification System: APG IV Superregnum: Eukaryota Regnum: Plantae Cladus: Angiosperms Cladus: Eudicots Cladus: Core eudicots Cladus: Rosids Cladus: Eurosids I Ordo: Rosales

Familia: Rosaceae
Subfamilia: Amygdaloideae
Tribus: Maleae
Subtribus: Malinae
Genus: Crataegus
Species: Crataegus okennonii

Crataegus okennonii J.B.Phipps, Sida 18: 170 (1998).

Typus: Okanagan Valley, E side of 97 A, 0.5 mi N of intersection with 97, scrubby slopes with long cleared area, 50°21'N, 119°15'W, British Columbia. J.B.Phipps, R.J.O'Kennon 6998. (Holotype: UWO; Isotypes BRIT, CAN, TRT, US).

Native distribution areas:
Northern America Northwestern U.S.A. Idaho, Montana, Washington. Western Canada British Columbia. References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2^nd Edition

Phipps, J.B. & O'Kennon, R.J. 1998. Three new species of Crataegus (Rosaceae) from Western North America: C. okennonii, C. okanaganensis and C. phippsii. Sida 18(1): 169–191. BHL Reference page.

Phipps, J.B. 2014. Crataegus. Pp. 513 in Flora of North America Editorial Committee (ed.), Flora of North America North of Mexico. Volume 9: Magnoliophyta: Picramniaceae to Rosaceae. xxiv + 713 pp., Oxford University Press, New York / Oxford. ISBN 978-0-19-534029-7. efloras FNA WebsiteReference page.

Hassler, M. 2020. Crataegus okennonii. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2020. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2020 February 5. Reference page.
Govaerts, R. et al. 2020. Crataegus okennonii in Kew Science Plants of the World Online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2020 February 5. Reference page.
International Plant Names Index. 2020. Crataegus okennonii. Published online. Accessed: 5 February 2020. Reference page.

English: O'Kennon hawthorn

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