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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » National Germplasm Resources Laboratory » People & Locations » John Wiersema
John H Wiersema
National Germplasm Resources Laboratory
Botanist

Phone: (301) 504-9181
Fax: (301) 504-5810
Room 124

BLDG 003
10300 BALTIMORE BLVD
BLDG 003 BARC-WEST
BELTSVILLE, MD 20705

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)

Projects
Plant Genetic Resource Acquisition, Conservation, International Exchange, and Taxonomic and Nomenclatural Support for the U.S. National Plant Germplasm System
In-House Appropriated (D)
  Accession Number: 434391

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Report on corrections and future considerations for Appendices II–VIII of the International Code of Nomenclature for Algae, Fungi, and Plants - (Peer Reviewed Journal)
Wiersema, J.H., May, T.W., Turland, N.J. 2017. Report on corrections and future considerations for Appendices II–VIII of the International Code of Nomenclature for Algae, Fungi, and Plants. Taxon. 66:772-775.
A new weed in Florida, Spermacoce latifolia, and the distinction between S. alata and S. latifolia (Spermacoceae, Rubiaceae) - (Peer Reviewed Journal)
Wiersema, J.H., Delprete, P.G., Kirkbride, J.H., Franck, A.R. 2017. A new weed in Florida, Spermacoce latifolia, and the distinction between S. alata and S. latifolia (Spermacoceae, Rubiaceae). Castanea. 82:114-131.
Synopsis of proposals on botanical nomenclature – Shenzhen 2017: A review of the proposals concerning the International Code of Nomenclature for algae, fungi, and plants submitted to the XIX International Botanical Congress - (Peer Reviewed Journal)
Turland, N.J., Wiersema, J.H. 2017. Synopsis of proposals on botanical nomenclature – Shenzhen 2017: A review of the proposals concerning the International Code of Nomenclature for algae, fungi, and plants submitted to the XIX International Botanical Congress. Taxon. 66:217-274.
Nomenclature notes on Phoebe chekiangensis (Lauraceae) - (Peer Reviewed Journal)
Yang, Y., Zhu, X., Wiersema, J.H. 2017. Nomenclature notes on Phoebe chekiangensis (Lauraceae). Taxon. 66:165-166.
(364) Proposal to provide a more direct definition of the term “gathering” - (Peer Reviewed Journal)
Wiersema, J.H. 2016. (001) Proposal to provide a more direct definition of the term “gathering”. Taxon. 65:1186.
(390) Proposal to preclude homonymy of generic names with names of intergeneric graft-hybrids (chimaeras) - (Peer Reviewed Journal)
McNeill, J., Shaw, J.M., Wiersema, J.H. 2016. (000) Proposal to preclude homonymy of generic names with names of intergeneric graft-hybrids (chimaeras). Taxon. 65:1198-1199.
(385-388) Proposals to amend Art. 32.2, 23.5, and 24.2 to clarify the treatment of transcribed Greek terminations of epithets - (Peer Reviewed Journal)
Wiersema, J.H., Gandhi, K.N. 2016. (001–002) Proposals to amend Art. 32.2, 23.5, and 24.2 to clarify the treatment of transcribed Greek terminations of epithets. Taxon. 65:1195-1196.
Correcting the type designations of Caryodaphnopsis baviensis and C. laotica (Lauraceae) - (Peer Reviewed Journal)
Sun, T., Wiersema, J.H., Yang, Y. 2016. Correcting the type designations of Caryodaphnopsis baviensis and C. laotica (Lauraceae). Phytotaxa 270:227-230.
(001–003) Proposals relating to the valid publication of new combinations, names at new rank, and replacement names (Art. 41) - (Peer Reviewed Journal)
Greuter, W., Wiersema, J.H., Turland, N.J. 2016. (334-336) Proposals relating to the valid publication of new combinations, names at new rank, and replacement names (Art. 41). Taxon 65:911-912.
(001) A proposal relating to infraspecific names (Art. 24) - (Peer Reviewed Journal)
Greuter, W., Turland, N., Wiersema, J.H. 2016. (321) A proposal relating to infraspecific names (Art. 24). Taxon 65:905-906.
(001–008) Some proposals to resolve problems relating to the conservation or rejection of names, suppression of works, and binding decisions - (Peer Reviewed Journal)
Wiersema, J.H., Greuter, W., McNeill, J. 2016. (234-241) Some proposals to resolve problems relating to the conservation or rejection of names, suppression of works, and binding decisions. Taxon 65:642-646.
(000) A proposal concerning the valid publication of suprageneric “autonyms” - (Peer Reviewed Journal)
Wiersema, J.H., Greuter, W. 2016. (262) A proposal concerning the valid publication of suprageneric “autonyms”. Taxon 65:652.
(20-22) Proposals to add Gerard, FL gallo-Prov. 1761, Kramer, Elench. Veg. 156, and Miller, Gard. Dict. Abr. ed. 4 1754 to the list of suppressed works in Appendix VI - (Peer Reviewed Journal)
Wiersema, J.H., Gandhi, K.N. 2016. Proposals to add Gerard, FL gallo-Prov. 1761, Kramer, Elench. Veg. 156, and Miller, Gard. Dict. Abr. ed. 4 1754 to the list of suppressed works in Appendix VI. Taxon. 65(3):638-639.
Origins of food crops connect countries worldwide. - (Peer Reviewed Journal)
Khoury, C.K., Achicanoy, H.A., Bjorman, A.D., Navarro-Racines, C., Guarino, L., Flores-Palacios, X., Engels, J.M.M., Wiersema, J.H., Dempewolf, H., Sotelo, S., Ramirez-Villegas, J., Castaneda-Alvarez, N., Fowler, C., Jarvis, A., Rieseberg, L.H., Struik, P.C. 2016. Origins of food crops connect countries worldwide. Proceedings of the Royal Society B 283:20160792. DOI:10.1098/rspb.2016.0792.
The Melbourne Code Appendices: announcing a new approach for tracking nomenclatural decisions and a analysis of the history of nomenclatural proposals - (Abstract Only)
The foundation of the Melbourne Code Appendices: Announcing a new paradigm for tracking nomenclatural decisions - (Peer Reviewed Journal)
Wiersema, J.H., McNeill, J., Turland, N.J., Orli, S.S., Wagner, W.L. 2015. The foundation of the Melbourne Code Appendices: Announcing a new paradigm for tracking nomenclatural decisions. Taxon 64: 1021-1027.
The GRIN-Taxonomy Crop Wild Relative Inventory. Pp 453-457 in Maxted, N., Mulloo, M.E., Ford-Lloyd, B.V. Enhancing crop genepool use: capturing wild relative and landrace diversity for crop improvement - (Proceedings)
Wiersema, J.H., Leon, B. 2016. The GRIN-Taxonomy Crop Wild Relative Inventory. Pp 453-457 in Maxted, N., Mulloo, M.E., Ford-Lloyd, B.V. Enhnacing crop genepool use: capturing wild relative and landrace diversity for crop improvement. CABI(Council of Applied Biology International, Oxford, United Kingdom. 453-457.
Collecting crop wild relatives: an emerging priority - (Book / Chapter)
Greene, S.L., Khoury, C., Williams, K.A., Wiersema, J.H., Kinard, G.R. 2015. Collecting crop wild relatives: an emerging priority. Meeting Abstract. National Native Seed Conference, Santa Fe, NM April 10-13, 2015.
International Code of Nomenclature for Algae, Fungi, and Plants (Melbourne Code): Appendices II-VIII - (Book / Chapter)
Wiersema, J.H., McNeill, J., Turland, N.J., Barrie, F.R., Buck, W.R., Demoulin, V., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Marhold, K., Prado, J., Prud’Homme Van Reine, W.F., Smith, G.F. 2015. International Code of Nomenclature for Algae, Fungi, and Plants (Melbourne Code): Appendices II-VIII. Regnum Vegetabile 157:1-492.
Proposal to conserve the name Viola blanda Willd. against Viola blanda Salisb. (Violaceae) - (Peer Reviewed Journal)
Choo, T., Gandhi, K., Wiersema, J.H., Jarvis, C., Reveal, J. 2014. Proposal to conserve the name Viola blanda Willd. against Viola blanda Salisb. (Violaceae). Taxon. 63:690-691.
The GRIN-Taxonomy crop wild relative inventory - (Abstract Only)
Application of the name Lemna punctata G. Mey., the type of Landoltia Les & D. J. Crawford - (Peer Reviewed Journal)
Wiersema, J.H. 2014. Application of the name Lemna punctata G. Mey., the type of Landoltia Les & D. J. Crawford. Plant Biology. http://onlinelibrary.wiley.com/doi/10.1111/plb.12209/full.
International Seed Testing Association List of stabilized plant names, edition 6 - (Other)
Wiersema, J.H. 2014. International Seed Testing Association List of stabilized plant names, edition 6. International Seed Testing Association Handbook. http://www.seedtest.org/upload/cms/user/Stab_List_Ed_61.pdf.
An inventory of crop wild relatives of the United States - (Peer Reviewed Journal)
Khoury, C., Greene, S.L., Wiersema, J.H., Maxted, N., Jarvis, A., Struik, P.C. 2013. An inventory of crop wild relatives of the United States. Crop Science. 53:1496-1508.
World Economic Plants: a standard reference, 2nd ed - (Book / Chapter)
Wiersema, J.H., Leon, B. 2013. World Economic Plants: a standard reference, 2nd ed. Boca Raton, FL: CRC Press. 1300 p.
International Code of Nomenclature for Algae, Fungi, and Plants - (Book / Chapter)
McNeill, J., Turland, N.J., Barrie, F.R., Buck, W.R., Greuter, W., Wiersema, J.H. 2012. International Code of Nomenclature for Algae, Fungi, and Plants. Konigstein, Germany: Koeltz Scientific Books. 208 p.
(1) Request for a binding decision on whether Ferdinanda (Compositae) and Ferdinandea (Rubiaceae) are sufficiently alike to be confused - (Peer Reviewed Journal)
Kirkbride, J.H., Wiersema, J.H., Delprete, P.G. 2012. (1) Request for a binding decision on whether Ferdinanda (Compositae) and Ferdinandea (Rubiaceae) are sufficiently alike to be confused. Taxon. 61(2):479.
Proposals to reject the names Spermacoce stigosa and S. hyssopifolia Sm. and conserve the names S. hyssopifolia Wild. Es oem. & Schult. (Rubiaceae) - (Peer Reviewed Journal)
Kirkbride, J.H., Wiersema, J.H., Delprete, P.G. 2012. Proposals to reject the names Spermacoce stigosa and S. hyssopifolia Sm. and conserve the names S. hyssopifolia Wild. Es oem. & Schult. (Rubiaceae). Taxon. 61(2):475-476.
Identifying wild relatives of subtropical and temperate fruit and nut crops - (Proceedings)
Wiersema, J.H., Leon, B., Garvey, E.J. 2012. Identifying wild relatives of subtropical and temperate fruit and nut crops. Acta Horticulturae. 948:285-288.
Validation of the name Wolffia borealis (Lemnaceae) - (Peer Reviewed Journal)
Gandhi, K., Wiersema, J.H., Brouillet, L. 2012. Validation of the name Wolffia borealis (Lemnaceae). Harvard Papers in Botany. 17:47-50.
(1947-1958) Proposals to reject twelve names emanating from Loefling's Iter Hispanicum (1758), Ayenia sidiformis (Malvaceae), Cofer (Symplocaceae), Cruzeta and C. hispanica (Amaranthaceae), Edechia inermis and E. spinosa... - (Peer Reviewed Journal)
Dorr, L.J., Wiersema, J.H. 2010. (1947-1958) Proposals to reject twelve names emanating from Loefling's Iter Hispanicum (1758), Ayenia sidiformis (Malvaceae), Cofer (Symplocaceae), Cruzeta and C. hispanica (Amaranthaceae), Edechia inermis and E. spinosa.... Taxon. 59(4):1280-1282.
American vascular plants published in Loefling’s Iter Hispanicum (1758) and its German translation(1766) - (Peer Reviewed Journal)
Dorr, L., Wiersema, J.H. 2010. American vascular plants published in Loefling’s Iter Hispanicum (1758) and its German translation(1766). Taxon. 59(4):1245-1262.
Proposal to conserve the name Thaspium (Umbelliferae/Apiaceae) - (Peer Reviewed Journal)
Reveal, J.L., Gandhi, K.N., Wiersema, J.H. 2009. Proposal to conserve the name Thaspium (Umbelliferae/Apiaceae). Taxon 58(3): 14.
Biogeography of Nymphaeales: Extant patterns and historical events. - (Peer Reviewed Journal)
Lohne, C., Yoo, M., Borsch, T., Wiersema, J.H., Wilde, V., Bell, C.D., Barthlott, W., Soltis, D.E., Soltis, P.S. 2008. Biogeography of Nymphaeales: Extant patterns and historical events. Taxon 57(4):1123-1146.
Nuclear and plastid DNA sequences reveal complex evolutionary patterns in Australian water-lilies (Nymphaea subgenus Anecphya, Nymphaeaceae) - (Peer Reviewed Journal)
Lohne, C., Borsch, T., Jacobs, S.W.L., Hellquist, C.B., Wiersema, J.H. 2008. Nuclear and plastid DNA sequences reveal complex reticulate patterns in Australian water-lilies (Nymphaea subgenus Anecphya, Nymphaeaceae). Australian Systematic Botany. 21(4):229-250.
Proposal to reject the name Juglans alba (Juglandaceae), thereby retaining the name Carya tomentosa - (Peer Reviewed Journal)
Ward, D.B., Wiersema, J.H. 2008. (1807) Proposal to reject the name Juglans alba (Carya alba)(Juglandaceae). Taxon. 57(1):308-310.
ISTA List of Stablized Plant Names, ed. 5 - (Other)
Wiersema, J.H. 2007. ISTA list of stablized plant names, ed. 5. International Seed Testing Association. 73 pp.
Proposal To Conserve The Name Zinnia Elegans Against Z. Violacea (Compositae) - (Peer Reviewed Journal)
Kirkbride, J.H., Wiersema, J.H. 2007. Proposal to conserve the name Zinnia elegans against Z. violacea (Compositae). Taxon. 56(3):958-959.
THE NOMENCLATURE OF SORGHUM BICOLOR (L.) MOENCH (GRAMINEAE) - (Peer Reviewed Journal)
Wiersema, J.H., Dahlberg, J. 2007. The nomenclature of Sorghum bicolor (L.) Moench (Gramineae). Taxon. 56(3):941-946.
Corrections to the Vienna Code - (Peer Reviewed Journal)
Mcneill, J., Turland, N.J., Wiersema, J.H. 2007. Corrections to the Vienna Code. Taxon. 56:585-586.
PHYLOGENETIC ANALYSIS OF NYMPHAEALES USING FAST-EVOLVING AND NON-CODING CHLOROPLAST MARKERS - (Peer Reviewed Journal)
Lohne, C., Borsch, T., Wiersema, J.H. 2007. Phylogenetic analysis of Nymphaeales using fast-evolving and non-coding chloroplast markers. Botanical Journal of the Linnean Society. 154:141-163.
Guidelines for proposals to conserve or reject - (Peer Reviewed Journal)
Mcneil, J., Redhead, S., Wiersema, J.H. 2007. Guidelines for proposals to conserve or reject names. Taxon. 56:249-252.
Proposal to reject the name Arundo vallatoria (Poaceae) - (Peer Reviewed Journal)
Kirkbride, J.H.Jr., Wiersema, J.H. 2007. Proposal to reject the name Arundo vallatoria (Poaceae). Taxon. 56(1):258.
PHYLOGENY OF NYMPHAEA (NYMPHAEACEAE): TRNT-TRNF EVIDENCE FOR EVOLUTION OF THE FIRST GLOBAL LINEAGE OF EXTANT ANGIOSPERMS - (Peer Reviewed Journal)
Borsch, T., Hilu, K.W., Wiersema, J.H., Lohne, C., Barthlott, W., Wilde, V. 2007. Phylogeny analysis of Nymphaea (Nymphaeaceae): Evidence from substitutions and microstructural changes in the chloroplast trnT-trnF region. International Journal of Plant Sciences. 168:639-671.
International Code of Botanical Nomenclature (Vienna Code) Journal or equivalent: Book - (Book / Chapter)
McNeill, J., Barrie, F.R. , Burdet, H.M., Demoulin, V., Hawksworth, D.J., Marhold, K., Nicolson, D.H., Prado, J., Silva, P.C., Skog, J.E., Wiersema, J. H., Turland, N. J., 2006. International Code of Botanical Nomenclature (Vienna Code) adopted by the Seventh International Botanical Congress Vienna, Austria, July 2005. A.R.G. Gantner Velag, Ruggell, Liechtenstein. 568 pp.
PROPOSAL TO CONSERVE THE NAME ZIZIPHUS JUJUBA AGAINST Z. ZIZYPHUS (RHAMNACEAE) - (Peer Reviewed Journal)
Kirkbride, J.H. Jr., Wiersema, J.H., Turland, N.J. 2006. Proposal to conserve the name Ziziphus Jujuba against z. zizyphus (Rhamnaceae). Taxon. 55(4):1049-1050.
CORRECTING THE TYPE DESIGNATION OF PHOEBE CALCAREA S. K. LEE & F. N. WEI (LAURACEAE) - (Peer Reviewed Journal)
Yang, Y., Wiersema, J.H. 2006. Correcting the type designation of Phoebe calcarea S. K. Lee & F. N. Wei. Taxon 55:511-512.
THE NOMENCLATURE OF IPOMOEA MURICATA (CONVOLVULACEAE) REVISITED. - (Peer Reviewed Journal)
Staples, G.W., Wiersema, J.H., Chambers, N., Austin, D.F. 2005. The nomenclature of Ipomoea muricata (Convolvulaceae) revisited. Taxon 54:1075-1079.
PROPOSAL TO CONSERVE THE NAME CENTROSEMA PUBESCENS (FABACEAE) WITH A CONSERVED TYPE - (Peer Reviewed Journal)
Kirkbride, J.H., Wiersema, J.H. 2005. Proposal to conserve the name Centrosema pubescens (Fabaceae) with a conserved type. Taxon. 54(1):209-210.
PROPOSALS TO CLARIFY THE INTERPRETATION OF ARTICLE 60.7 AND ITS EXAMPLE 11 - (Peer Reviewed Journal)
Wiersema, J.H., Nicholson, D. 2005. Proposals to clarify the interpretation of Article 60.7 and its example 11. Taxon. 53(4):1100-1101.
PATTERN OF VARIATION AND SYSTEMATICS OF NYMPHAEA ODORATA: I. EVIDENCE FROM MORPHOLOGY AND INTER-SIMPLE SEQUENCE REPEATS (ISSRS) - (Peer Reviewed Journal)
Woods, K., Hilu, K.W., Wiersema, J.H., Borsch, T. 2005. Pattern of variation and systematics of Nymphaea odorata: I. Evidence from morphology and inter-simple sequence repeats (ISSRs). Systematic Botany 30:471-480.
PATTERN OF VARIATION AND SYSTEMATICS OF NYMPHAEA ODORATA: II. SEQUENCE INFORMATION FROM ITS AND TRNL-TRNF - (Peer Reviewed Journal)
Woods, K., Hilu, K.W., Borsch, T., Wiersema, J.H. 2005. Pattern of variation and systematics of Nymphaea odorata: II. Sequence information from ITS and trnL-trnF. Systematic Botany 30:481-493.
INTERNATIONAL CODE OF CULTIVATED PLANT NOMENCLATURE - (Book / Chapter)
Brickell, C.D., Baum, B.R., Hetterscheid, W.A., Leslie, A.C., McNeill, J., Trehane, P., Vrugtman, F., Wiersema, J.H. 2004. International code of cultivated plant nomenclature. Acta Horticulturae 1-123 p.
SOME PROPOSALS TO CLARIFY THE CONCEPT OF 'ASCRIPTION OF A NAME' - (Peer Reviewed Journal)
Zijlstra, G., Reveal, J.L., Wiersema, J.H. 2004. Some proposals to clarify the concept of 'ascription of a name'. Taxon. 53 (3) p.856
PROPOSAL TO CONSERVE SESAMUM INDICUM AGAINST SESAMUM ORIENTALE (PEDALIACEAE) - (Peer Reviewed Journal)
Nicolson, D.H., Wiersema, J.H. 2004. Proposal to conserve sesamum indicum against sesamum orientale (pedaliaceae). Taxon. v. 53 pp. 210-211.
THE ROLE OF THE GRIN DATABASE IN PROMOTING STABILIZATION OF ECONOMIC PLANT NAMES - (Peer Reviewed Journal)
Wiersema, J.H. 2004. The role of the grin database in promoting stabilization of economic plant names. Acta Horticulture Proceedings. v. 634 pp. 67-74.
USAGE OF GRIN TAXONOMY AS A RESOURCE FOR CROP NAMES - (Proceedings)
THE ROLE OF THE GRIN DATABASE IN PROMOTING STABILIZATION OF ECONOMIC PLANT NAMES - (Peer Reviewed Journal)
WATER-LILIES (NYMPHAEA) IN NORTHERN HEMISPHERE: WHAT DO DNA, MORPHOLOGY, AND FOSSILS TELL US ABOUT THEIR ORIGIN, MIGRATION AND DIVERSIFICATION? - (Abstract Only)
PHYLOGENY AND EVOLUTION OF NYMPHAE:INTEGRATING EVIDENCE FROM DIFFERENT GENOMIC REGIONS AND FROM PALAEOBOTANY. - (Abstract Only)
PROPOSAL TO CONSERVE THE NAME SCHEDONORUS ARUNDINACEUS (SCHREB.) DUMORT. AGAINST SCHEDONORUS ARUNDINACEUS ROEM. & SCHULT. (POACEAE:POEAE) - (Peer Reviewed Journal)
A NEWLY REVISED, ON-LINE "ISTA LIST OF STABILIZED PLANT NAMES" - (Abstract Only)
GUIDELINES FOR PROPOSALS TO CONSERVE OR REJECT NAMES - (Peer Reviewed Journal)
PROPOSAL TO CONSERVE THE NAME BOUTELOUA GRACILIS (POACEAE) - (Peer Reviewed Journal)
NYMPHAEACEAE - (Book / Chapter)
NELUMBONACEAE - (Book / Chapter)
CABOMBACEAE - (Book / Chapter)
NYMPHAEA(MYMPHAEACEAE) IN BOLIVIA:NOTES ON SEVERAL SPECIES, INCLUDING THREECOUNTY RECORDS, AND A KEY TO ALL SPECIES - (Peer Reviewed Journal)
TRES NUEVOS REGISTROS PARA MEXICO DE PLANTAS ACUATICAS VASCULARES - (Peer Reviewed Journal)
NOMENCLATURE OF WORLD ECONOMIC PLANTS FROM THE USDA'S GRIN DATABASE - (Proceedings)
POISONOUS PLANT VOUCHERS - (Peer Reviewed Journal)
RETROSPECTIVE SEARCHING FOR POISONOUS PLANT VOUCHERS - (Peer Reviewed Journal)
UNIFORM CLASSIFICATION OF WEED AND CROP SEEDS - (Book / Chapter)
WORLD ECONOMIC PLANTS FROM USDA'S GRIN DATABASE - (Book / Chapter)
ECONOMIC PLANTS OF THE WORLD - (Book / Chapter)
POISONOUS PLANT NAMES - (Book / Chapter)
OBSERVATIONS ON NATIVE NYMPHAEA OF NORTHERN NORTH AMERICA AND THEIR USE IN WATER GARDENING - (Peer Reviewed Journal)
NYMPHAEA TETRAGONA AND NYMPHAE LEIBERGII(NYMPHAEACEAE):NOT ONE, BUT TWO SPECIES OF DIMINUTIVE WATER-LILIES IN NORTH AMERICA. - (Peer Reviewed Journal)
BOBGUNNIA, A NEW AFRICAN GENUS OF TRIBE SWARTZIEAE (FABACEAE, FABOIDEAE) - (Peer Reviewed Journal)
TAXONOMIC INFORMATION ON CULTIVATED PLANTS IN THE USDA/ARS GERMPLASM RESOURCES INFORMATION NETWORK (GRIN). - (Peer Reviewed Journal)
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