Accepted By:
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Correll, D. S. & M. C. Johnston. 1970. Man. Vasc. Pl. Texas i–xv, 1–1881. The University of Texas at Dallas, Richardson.
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Lee, Y. S., D. S. Seigler & J. E. Ebinger. 1989. Acacia rigidula (Fabaceae) and related species in Mexico and Texas. Syst. Bot. 14(1): 91–100.
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