flower; photograph by H.D.C. de Wit, National Herbarium of the Netherlands, Wageningen University branch
flowers; photograph by K. Larsen, Department of Systematic Botany, Arhus, Denmark
S.E.M. picture of pollen grain by S.S. Larsen, Department of Systematic Botany Arhus, Denmark
flower; photograph by K. Larsen, Department of Systematic Botany, Arhus, Denmark
part of inflorescence and flower; drawing by H. Lamourdeieu in Flora of Thailand 4 (1) f. 1
flower; photograph by W.F. Downes, slide collection Herbarium Kew
flowering branch and pod; drawing from Bot. Mag. CXI (1835) t. 6818