• 1960–
• German botanist
• Standard abbreviation: Esser

Publications

(List may be incomplete)

• Webster, G.L., Berry, P.E., Armbruster, W.S., Esser, H.-J., Gillespie, L.J., Hayden, W.J., Levin, G.A., Secco, R.S., Heald, S.V. 1999. Euphorbiaceae. Pp. 72–228 in Steyermark, J.A. (†), Berry, P.E., Yatskievych, K. & Holst, B.K. (eds.), Flora of the Venezuelan Guayana, Vol. 5, Eriocaulaceae–Lentibulariaceae. Missouri Botanical Garden Press, St. Louis. ISBN 0-915279-71-1. Reference page. 

• Akiyama, S., Thijsse, G., Esser, H.-J. & Ohba, H. 2014. Siebold and Zuccarini’s Type Specimens and Original Materials from Japan, Part 5. Angiosperms. Dicotyledoneae 4. The Journal of Japanese Botany 89(5): 279–330. JJB (PDF) Reference page. 

• Akiyama, S., Thijsse, G., Esser, H.-J. & Ohba, H. 2015. Siebold and Zuccarini's type specimens and original materials from Japan, part 7. Angiosperms. Dicotyledoneae 6. The Journal of Japanese Botany 90: 317-341. Reference page.