Sedum meehanii (Gray 1881: 105) was based on plants sent from a nursery in Philadelphia, said to have originated in Utah (United States) in 1874 (Clausen 1975: 68). In 1946 Clausen annotated the type collection to S. hispanicum Juslenius [sic!]. Cronquist et al. (1997) excluded S. meehanii from the Intermountain Flora, and followed Clausen in synonymizing it with S. hispanicum Linnaeus (1755: 12). Welsh (1982) and Welsh et al. (1987) tentatively placed S. meehanii as a synonym of S. lanceolatum Torr. (1827: 205), a species native species in Utah. Ohba (2009) interpreted the specimen as a naturalized adventive, not cultivated, and accepted S. hispanicum as a member of the Utah flora. ’t Hart & Bleij (2003) instead treated S. meehanii among “unresolved applications” of the genus Sedum.
Intermountain Flora: Vascular Plants of the Intermountain West, U.S.A. Subclass Magnoliidae–Caryophyllidae, Vol. 2A Intermountain Flora: Vascular Plants of the Intermountain West, U.S.A. Subclass Magnoliidae–Caryophyllidae, Vol. 2A. N.H. Holmgren, P.K. Holmgren, J.L. Reveal and Collaborators. 2012. Bronx, New York. The New York Botanical Garden Press. 742 pp. ISBN 978-0-89327-520-4 , Price $150.00 , hardcover .