Pinus × critchfieldii Axelrod & T.G. Hill (1988:558)
Taxonomy & Nomenclature
Pinus × critchfieldii Businský (2013) is a junior homonym, which interestingly was also described as a hybrid.
Conservation Status
Extinct (Axelrod & Hill, 1988)
Last record: Late Pleistocene (Axelrod & Hill, 1988)
Distribution & Habitat
southern California, USA
Anatomy & Morphology
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Axelrod, Daniel I. and Hill, Thomas G. (1988). Pinus × critchfieldii, a Late Pleistocene hybrid pine from coastal southern California. American Journal of Botany 75(4): 558-569. https://doi.org/10.1002/j.1537-2197.1988.tb13475.x
Other references:
Businský, Roman. (2013). Two new spontaneous hybrids of American hard pines from Pinus sect. Trifoliae (Pinaceae) found in the unique Russian Sochi Arboretum. Feddes Repertorium 123(3): 209-217. https://doi.org/10.1002/fedr.201300001
IFPNI (International Fossil Plant Names Index). Pinus critchfieldii. In: International Fossil Plant Names Index. Available at: https://ifpni.org/ [Accessed 23 August 2026]