Dirca Linnaeus. Leatherwood, Leatherbark.
A genus of 4 species, shrubs, of North America (including Mexico). The two species in the southeastern United States are most closely related to D. mexicana Nesom & Mayfield (of the Sierra Madre Oriental, Tamaulipas, Mexico); the other species is D. occidentalis A. Gray of California (Schrader & Graves 2004; Floden, Mayfield, & Ferguson 2009).
Ref: Floden & Nevling (2015) In Flora of North America Editorial Committee (2015); Floden, Mayfield, & Ferguson (2009); Nevling (1962); Schrader & Graves (2004). Show full citations.
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