Accepted By:
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Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville.
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Flora of North America Editorial Committee. 2009. Magnoliophyta: Paeoniaceae to Ericaceae. 8: i–xxiv, 1–585. In Flora of North America Editorial Committee (eds.) Fl. N. Amer.. Oxford University Press, New York.
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Shreve, F. & I. L. Wiggins. 1964. Veg. Fl. Sonoran Desert 2 vols. Stanford University Press, Stanford.
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