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1 January 2008 Resurrection of Asclepias schaffneri (Apocynaceae, Asclepiadoideae), a Rare, Mexican Milkweed
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Abstract

Relocation and further study of the local endemic Asclepias zacatecana McVaugh showed that it is conspecific with A. schaffneri A. Gray, a distinct species that previously had been synonymized with A. quinquedentata A. Gray. However, we consider a recently described species, A. rzedowskii W.D. Stevens, to be conspecific with A. quinquedentata. Asclepias schaffneri is lectotypified.

Mark Fishbein, Verónica Juárez-Jaimes, and Leonardo O. Alvarado-Cárdenas "Resurrection of Asclepias schaffneri (Apocynaceae, Asclepiadoideae), a Rare, Mexican Milkweed," Madroño 55(1), 69-75, (1 January 2008). https://doi.org/10.3120/0024-9637(2008)55[69:ROASAA]2.0.CO;2
Published: 1 January 2008
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