Template:Alverson & Steyermark, 1997
- Alverson, W.S. & Steyermark, J.A. (†). 1997. Bombacaceae. Pp. 496–527 in Steyermark, J.A., Berry, P.E. & Holst, B.K. (eds.), Flora of the Venezuelan Guayana, Vol. 3, Araliaceae–Cactaceae. Missouri Botanical Garden, St. Louis. ISBN 0-915279-46-0.