Crataegus opaca (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Crataegus opaca" in English language version.

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732^nd place

800^th place

low place

8,425^th place

low place

doi.org

IUCN SSC Global Tree Specialist Group & Botanic Gardens Conservation International (BGCI) (2020). "Crataegus opaca". IUCN Red List of Threatened Species. 2020: e.T152909538A152909540. doi:10.2305/IUCN.UK.2020-1.RLTS.T152909538A152909540.en. Retrieved 2 June 2024.

Phipps, J.B. (2015), "Crataegus opaca Hooker & Arnott, Compan. Bot. Mag. 1: 25. 1835", in L. Brouillet; K. Gandhi; C.L. Howard; H. Jeude; R.W. Kiger; J.B. Phipps; A.C. Pryor; H.H. Schmidt; J.L. Strother; J.L. Zarucchi (eds.), Magnoliophyta: Picramniaceae to Rosaceae, Flora of North America North of Mexico, vol. 9, New York, Oxford: Oxford University Press

IUCN SSC Global Tree Specialist Group & Botanic Gardens Conservation International (BGCI) (2020). "Crataegus opaca". IUCN Red List of Threatened Species. 2020: e.T152909538A152909540. doi:10.2305/IUCN.UK.2020-1.RLTS.T152909538A152909540.en. Retrieved 2 June 2024.