John Littner Clark (born 1969), U.S. botanist.

IPNI standard form: J.L.Clark

Taxon names authored

(List may be incomplete)

• 12 taxon names authored by John Littner Clark

Publications

(List may be incomplete)

• Clark, J.L., Neill, D.A. & Asanza, M. 2006. Floristic Checklist of the Mache-Chindul Mountains of Northwestern Ecuador. Contributions from the United States National Herbarium 54: 1–180. BHL Reference page. 
• Clark, J.L. & Mora, M.M. 2014. Nautilocalyx erytranthus (Gesneriaceae), a new species from Northwestern Amazonia. Phytotaxa 164(3): 183–189. DOI: 10.11646/phytotaxa.164.3.3 Reference page. 
• Clark, J.L., Nee, M., Bohs, L. & Knapp, S. 2015. A Revision of Solanum Section Aculeigerum (the Solanum wendlandii Group, Solanaceae). Systematic Botany 40(4): 1102–1136. DOI: 10.1600/036364415X690148 Reference page. 
• Mora, M.M. & Clark, J.L. 2016. Molecular phylogeny of the Neotropical genus Paradrymonia (Gesneriaceae), reexamination of generic concepts and the resurrection of Trichodrymonia and Centrosolenia. Systematic Botany 41(1): 82–104. DOI: 10.1600/036364416X690561 Reference page.