Template:Howard, 2001
- Howard, R.A. 2001. Polygonaceae Juss. Pp. 2167–2176 in Stevens, W.D., Ulloa Ulloa, C., Pool, A. & Montiel, O.M. (eds.), Flora de Nicaragua, Vol. 3, Angiospermas (Pandanaceae–Zygophyllaceae). (Monographs in Systematic Botany from the Missouri Botanical Garden 85.) Missouri Botanical Garden Press, St. Louis. Online
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