| Medicinal plants of China JA Duke, ES Ayensu Algonac, MI (USA) Reference Publications, 1985 | 1622 | 1985 |
| Medicinal Plants of West Africa. ES Ayensu | 546 | 1981 |
| Medicinal plants of the West Indies ES Ayensu (No Title), 1981 | 390 | 1981 |
| Long-term biological consequences of nuclear war PR Ehrlich, J Harte, MA Harwell, PH Raven, C Sagan, GM Woodwell, ... Science 222 (4630), 1293-1300, 1983 | 330 | 1983 |
| Guinea yams: the botany, ethnobotany, use and possible future of yams in West Africa ES Ayensu, DG Coursey Economic botany 26 (4), 301-318, 1972 | 198 | 1972 |
| International ecosystem assessment E Ayensu, DR Van Claasen, M Collins, A Dearing, L Fresco, M Gadgil, ... Science 286 (5440), 685-686, 1999 | 188 | 1999 |
| Tropical forest ecosystems in Africa and South America: a comparative review. BJ Meggers, ES Ayensu, WD Duckworth | 154 | 1973 |
| Anatomy of the monocotyledons. 6. Dioscoreales. ES Ayensu | 142 | 1972 |
| Endangered and threatened plants of the United States. ES Ayensu, R DeFilipps | 132 | 1978 |
| Plant and bat interactions in West Africa ES Ayensu Annals of the Missouri Botanical Garden, 702-727, 1974 | 116 | 1974 |
| A revision of American Velloziaceae LB Smith, ES Ayensu | 103 | 1976 |
| Systematic anatomy and ontogeny of the stem in Passifloraceae ES Ayensu, WL Stern Systematic plant studies, 1964 | 79 | 1964 |
| Ashanti gold: The African legacy of the world's most precious metal ES Ayensu Ashanti Goldfields, 1997 | 74 | 1997 |
| Aerosol ot Solution—An Effective Softener of Herbarium Specimens for Anatomical Study ES Ayensu Stain Technology 42 (3), 155-156, 1967 | 71 | 1967 |
| Discoreales ES Ayensu Anatomy of the monocotyledons 6, 1-182, 1972 | 64 | 1972 |
| Medicinal plants of china. Medicinal plants of the world JA Duke, ES Ayensu Reference Publications, Algonac, MI, Inc 1, 362, 1985 | 63 | 1985 |
| Underexploited tropical plants with promising economic value National Research Council The Minerva Group, Inc., 2002 | 62* | 2002 |
| Firewood crops: shrub and tree species for energy production National Research Council | 61* | 1930 |
| Biological and morphological aspects of the Velloziaceae ES Ayensu Biotropica, 135-149, 1973 | 60 | 1973 |
| Endangered and threatened plants of the United States. Smithsonian Institution and World Wildlife Fund ES Ayensu, RA DeFilipps Inc., Washington, DC 403, 1978 | 55 | 1978 |
