Crataegus marshallii (English Wikipedia)

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

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doi.org

IUCN SSC Global Tree Specialist Group & Botanic Gardens Conservation International (BGCI) (2020). "Crataegus marshallii". IUCN Red List of Threatened Species. 2020: e.T152907290A152907292. doi:10.2305/IUCN.UK.2020-1.RLTS.T152907290A152907292.en. Retrieved 2 June 2024.
Phipps, J.B.; Robertson, K.R.; Smith, P.G.; Rohrer, J.R. (1990). "A checklist of the subfamily Maloideae (Rosaceae)". Canadian Journal of Botany. 68 (10): 2209–69. doi:10.1139/b90-288.

Phipps, J.B. (2015), "Crataegus marshallii Eggleston in N. L. Britton and J. A. Shafer, N. Amer. Trees. 473. 1908", 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 marshallii". IUCN Red List of Threatened Species. 2020: e.T152907290A152907292. doi:10.2305/IUCN.UK.2020-1.RLTS.T152907290A152907292.en. Retrieved 2 June 2024.

"Crataegus marshallii". NatureServe Explorer. NatureServe. Retrieved 2018-09-22.