England, J.K. 2013. Crassula aquatica (Crassulaceae) rediscovered in Alabama. Phytoneuron 2013-1: 1–2.

Angelo, R. and D.E. Boufford. 2013. Atlas of the flora of New England: Fabaceae. Phytoneuron 2013-2: 1–15 + map pages 1–21.

Spence, J.R. 2013. A new combination in Ptychostomum (Bryaceae, Bryophyta) for Bryum subneodamense Kindb. Phytoneuron 2013-3: 1.

Nesom, G.L. 2013. Taxonomic notes on Colubrina (Rhamnaceae). Phytoneuron 2013-4: 1–21.

Felger, R.S., S. Rutman, J. Malusa, and T.R. Van Devender. 2013. Ajo Peak to Tinajas Altas: Flora of southwestern Arizona: An introduction. Phytoneuron 2013-5: 1–40.

Reveal, J.L. 2013. Identification of the plants and animals illustrated by Mark Catesby for his Natural History of Carolina, Florida, and the Bahama Islands. Phytoneuron 2013-6: 1–55.

McMillan, P.D., A.H. Blackwell, C. Blackwell, and M.A. Spencer. 2013. The vascular plants in the Mark Catesby collection at the Sloane Herbarium, with notes on their taxonomic and ecological significance. Phytoneuron 2013-7: 1–37.

Buthod, A.K. and B.W. Hoagland. 2013. New to Oklahoma: Carex glaucescens (Cyperaceae) and Desmazeria rigida (Poaceae). Phytoneuron 2013-8: 1–5.

Townsend, J.F. 2013. Recognition of Boltonia asteroides var. glastifolia and reestablishment of a more restrictive taxonomic concept for Boltonia asteroides var. asteroides. Phytoneuron 2013-9: 1–8.

Wagner, D.H. 2013. Rivulariella, gen. nov. (Jungermanniaceae), endemic to western North America. Phytoneuron 2013-10: 1–9.

Panero, J.L. and S.E. Freire. 2013. Paquirea, a new Andean genus for Chucoa lanceolata (Asteraceae, Mutisioideae, Onoserideae). Phytoneuron 2013-11: 1–5.

Zamora, N.A. 2013. Una nueva especie de Schnella (Leguminosae, Caesalpinioideae: Cercideae) para Costa Rica. Phytoneuron 2013-12: 1–6.

Singhurst, J.R. and W.C. Holmes. 2013. Conyza floribunda (Asteraceae) new to the flora of Texas. Phytoneuron 2013-13: 1–3.

Urbatsch, L.E. 2013. Plants new and noteworthy for Louisiana and Mississippi. Phytoneuron 2013-14: 1–7.

Turner, I.M. 2013. Clarifying the nomenclature of Tridimeris (Annonaceae). Phytoneuron 2013-15: 1–2.

Gutierrez, R., Jr. 2012. Proboscidea sabulosa (Martyniaceae) in south Texas. Phytoneuron 2013-16: 1–4.

Phipps, J.B. 2013. Validation of Crataegus laurentiana Sargent var. dissimilifolia (Rosaceae). Phytoneuron 2013-17: 1–2.

Smith, M. and P.M. McKenzie. 2013. Schoenoplectiella x magrathii (Cyperaceae), a new interspecific hybrid between S. hallii and S. saximontana from Oklahoma. Phytoneuron 2013-18: 1–11.

Schilling, E.E. 2013. Barcoding the Asteraceae of Tennessee, tribes Cardueae and Vernonieae. Phytoneuron 2013-19: 1–7.

Vincent, M.A. 2013. Euphorbia graminea Jacq. (Euphorbiaceae), new to the Bahamas. Phytoneuron 2013-20: 1–3.

Egger, J.M. 2013. Castilleja kerryana (Orobanchaceae): A new species from the Rocky Mountains of northern Montana. Phytoneuron 2013-21: 1–14.

Spencer, J.M. and M.A. Vincent. 2013. Southern cat-tail (Typha domingensis, Typhaceae) discovered in Ohio. Phytoneuron 2013-22: 1–5.

Woods, M. 2013. Dalea mountjoyae M. Woods (Fabaceae), a new name for Dalea gracilis (Nuttall) D.B. Ward. Phytoneuron 2013-23: 1.

Semple, J.C. 2013. On the name Solidago mirabilis (Asteraceae: Astereae) and a new name for a Japanese species of goldenrod. Phytoneuron 2013-24: 1–9.

White, M. 2013. Veronica hederifolia (Scrophulariaceae): New for the flora of Texas. Phytoneuron 2013-25: 1–3.

Zamora, N.A. 2013. A new species of Licania (Chrysobalanaceae) from northeastern Costa Rica. Phytoneuron 2013-26: 1–6.

Felger, R.S., S. Rutman, J. Malusa, and T.R. Van Devender. 2013. Ajo Peak to Tinajas Altas: A flora of southwestern Arizona: Part 2. The checklist. Phytoneuron 2013-27: 1–30.

Urbatsch, L.E. and A. Meszaros. 2013. Calandrinia ciliata (Portulacaceae) new to Louisiana. Phytoneuron 2013-28: 1–3.

Hannick, V.C., J.N. Mink, J.R. Singhurst, and W.C. Holmes. 2013. Annotated checklist of the vascular flora of McLennan County, Texas. Phytoneuron 2013–29: 1–37.

Woods, M. and W.S. Hughes. 2013. The genus Dalea (Fabaceae) in Alabama. Phytoneuron 2013-30: 1–7.

Turner, B.L. 2013. Taxonomic status of Porophyllum X fruticulosum Rydb. (Asteraceae: Tageteae). Phytoneuron 2013-31: 1–3.

Keith, E.L. 2013. Trifolium nigrescens (Fabaceae), new to the Texas flora. Phytoneuron 2013-32: 1–6.

Johnson, G.P. 2013. Prunus americana (Rosaceae) in the Arkansas flora. Phytoneuron 2013-33: 1–5.

Barringer, K. 2013. New combinations in Sairocarpus (Plantaginaceae). Phytoneuron 2013-34: 1–3.

Spellenberg, R. and W. Anderson. 2013. Zaluzania augusta (Asteraceae: Heliantheae) new to the flora of Chihuahua, Mexico. Phytoneuron 2013-35: 1–3.

Turner, B.L. 2013. Taxonomic overview of the Mexican species of Salvia sect. Flocculosae (Lamiaceae). Phytoneuron 36: 1–11.

Felger, R.S., S. Rutman, J. Malusa, and T.R. Van Devender. 2013. Ajo Peak to Tinajas Altas: A flora of southwestern Arizona: Part 3: Ferns, lycopods, and gymnosperms. Phytoneuron 2013-37: 1–46.

Felger, R.S., S. Rutman, J. Malusa, and T.R. Van Devender. 2013. Ajo Peak to Tinajas Altas: A flora of southwestern Arizona: Part 4. Angiosperms: Magnoliids. Phytoneuron 2013-38: 1–9.

Keith, E.L. 2013. Securigera cretica (Fabaceae), new to the Texas flora and second record for North America. Phytoneuron 2013-39: 1–2.

Diamond, A.R., J.K. England, and B. Dykes. 2013. New to Alabama: Pitted bluestem, Bothriochloa pertusa (Poaceae). Phytoneuron 2013-40. 1–5.

Semple, J.C. and J. Peirson. 2013. A revised nomenclature for the Solidago simplex complex (Asteraceae: Astereae). Phytoneuron 2013-41: 1–4.

Semple, J.C. 2013. Application of the names Solidago stricta and S. virgata (Asteraceae: Astereae). Phytoneuron 2013-42: 1–3.

Nesom, G.L. 2013. Two new species of Erythranthe sect. Mimulosma (Phrymaceae) from California. Phytoneuron 2013-43: 1–10.

Elowsky, C.G., I.E. Jordon-Thaden, and R.B. Kaul. 2013. A morphological analysis of a hybrid swarm of native Ulmus rubra Muhl. and introduced U. pumila L. (Ulmaceae) in southeastern Nebraska. Phytoneuron 2013-44: 1–23. Corrected version.

Angelo, R. and D.E. Boufford. 2013. Atlas of the flora of New England: Families of vols. 6 & 14: Flora of North America. Phytoneuron 2013-45: 1–23 + map pages 1–30.

Nesom, G.L. 2013. Diplacus thompsonii (Phrymaceae), new species from California. Phytoneuron 2013-46: 1–7.

Diamond, A.R. 2013. New and noteworthy woody vascular plant records from Alabama. Phytoneuron 2013-47: 1–13.

Van Devender, T.R., R. Spellenberg, A.D. Flesch, S. Jacobs, and A.L. Reina-Guererro. 2013. Northern distributional limits of the Mexican willow oak (Quercus viminea) in Arizona, Sonora, and Chihuahua. Phytoneuron 2013-48: 1–6.

Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1–241.

Yatskievych, G., R.J. Evans, and C.T. Witsell. 2013. A reevaluation of the Ozark endemic Claytonia ozarkensis (Montiaceae). Phytoneuron 2013-50: 1–11.

Singhurst, J.R., J.N. Mink, and W.C. Holmes. 2013. Persicaria capitata (Polygonaceae) naturalized in Texas. Phytoneuron 2013-51: 1–3.

Patel, P.K. 2013. Argemone ochroleuca (Papaveraceae) naturalized in Dahod District, Gujarat, India. Phytoneuron 2013-52: 1–5.

Nesom, G.L., D.J. Rosen, and S.K. Lawrence. 2013. Notes on variation and geography in Rayjacksonia phyllocephala (Asteraceae: Astereae). Phytoneuron 2013-53: 1–14.

Horne, H.E., T.W. Barger, and G.L. Nesom. 2013. Two South American species of Oxalis (Oxalidaceae) naturalized in Alabama and the USA, first report. Phytoneuron 2013-54: 1–7.

Arroyo, F. and A.J. Pérez. 2013. Three new species of Magnolia (Magnoliaceae) from Ecuador. Phytoneuron 2013-55: 1–6.

Mosyakin, S.L. 2013. New nomenclatural combinations in Blitum, Oxybasis, Chenopodiastrum, and Lipandra (Chenopodiaceae). Phytoneuron 2013-56: 1–8.

Semple, J.C. 2013. A new species of Triplinerviae goldenrod in eastern Canada (Asteraceae: Astereae): Solidago brendiae. Phytoneuron 2013-57: 1–9.

Semple, J.C., H. Faheemuddin, Y.A. Chong, M.K. Sorour, J.A. Hood, I. Khamis, Y. Ma, and K. Kornobis. 2013. A multivariate morphometric study of the Solidago canadensis / S. lepida complex of Solidago subsect. Triplinerviae. I. Northeastern taxa (Asteraceae: Astereae). Phytoneuron 2013-58: 1–20.

Blackwell, A.H. and P.D. McMillan. 2013. Collected in 1704 in South Carolina: The plants of Joseph Lord. Phytoneuron 2013-59: 1–15.

Singhurst, J.R., J.N. Mink, and W.C. Holmes. 2013. A short chronicle of Euphorbia commutata (Euphorbiaceae) in Texas. Phytoneuron 2013-60: 1–6.

Keener, B.R. 2013. Two vascular plant species new to the Alabama flora. Phytoneuron 2013-61: 1–4.

Simpson, B.B. 2013. Krameria bicolor, the correct name for Krameria grayi (Krameriaceae). Phytoneuron 2013-62: 1.

Chapel, K.J. and M.A. Vincent. 2013. Trifolium kentuckiense (Fabaceae, Papilionoideae), a new species from Franklin and Woodford counties, Kentucky. Phytoneuron 2013-63: 1–6.

Nesom, G.L. 2013. A third species of Mimophytum s. str. and three new species of Omphalodes (Boraginaceae) from North America. Phytoneuron 2013-64: 1–22.

Nesom, G.L. 2013. Three new species of Diplacus (Phrymaceae) related to D. cusickii and D. nanus. Phytoneuron 2013-65: 1–18.

Nesom, G.L. 2013. Taxonomic notes on Diplacus (Phrymaceae). Phytoneuron 2013-66: 1–7.

Nesom, G.L. 2013. New distribution records for Erythranthe (Phrymaceae). Phytoneuron 2013-67: 1–15.

Nesom, G.L. 2013. Observations on habit and duration in populations of Erythranthe microphylla and E. guttata (Phrymaceae). Phytoneuron 2013-68: 1–8.

Nesom, G.L. 2013. The taxonomic status of Mimulus sookensis (Phrymaceae) and comments on related aspects of biology in species of Erythranthe. Phytoneuron 2013-69: 1–18.

Nesom, G.L. 2013. A new species of Erythranthe sect. Simiola (Phrymaceae) from California serpentine. Phytoneuron-70: 1–6.

Weckesser, W. 2013. First record of Peganum harmala (Zygophyllaceae) in Val Verde County, Texas, and subsequent eradication treatment. Phytoneuron 2013-71: 1–5.

Pruski, J.F. 2013. Studies of Neotropical Compositae–IX. Four new species of Calea (Neurolineae) from Bolivia, Brazil, and Paraguay. Phytoneuron 2013-72: 1–14.

McMillan, P.D. and A.H. Blackwell. 2013. The vascular plants collected by Mark Catesby in South Carolina: Combining the Sloane and Oxford herbaria. Phytoneuron 2013-73: 1–32.

Spaulding, D.D. 2013. Key to the dodders (Cuscuta, Convolvulaceae) of Alabama and adjacent states. Phytoneuron 2013-74: 1–15.

Diamond, A.R. 2013. New Cyperaceae and Poaceae records from Alabama. Phytoneuron 2013-75: 1–18.

Felger, R.S., S. Rutman, and J. Malusa. 2013. Ajo Peak to Tinajas Altas: A flora of southwestern Arizona: Part 5. Monocots except grasses. Phytoneuron 2013-76: 1–59.

Powell, A.M. and R.W. Spellenberg. 2013. Plateilema palmeri (Asteraceae: Helenieae: Plateileminae): Habitat information and chromosome number from a population in Mexico. Phytoneuron 2013-77: 1–5.

Heiden, G. 2013. Two new combinations in Baccharis (Asteraceae: Astereae). Phytoneuron 2013-78: 1–2.

Reveal, J.L. and K.C. Nixon. 2013. The palm type collection in the Liberty Hyde Bailey Hortorium (BH). Phytoneuron 2013-79: 1–46.

Nesom, G.L. 2013. Mimulus filicifolius joins Erythranthe (Phrymaceae). Phytoneuron 2013-80: 1–2.

Schilling, E.E. and A. Floden. 2013. Barcoding the Asteraceae of Tennessee, tribes Helenieae and Polymnieae. Phytoneuron 2013-81: 1–6.

Morales, J.F. 2013. Sinopsis del género Meliosma (Sabiaceae) en México y Centroamérica. Phytoneuron 2013-82: 1–86.

Spaulding, D.D. 2013. Key to the bindweeds (Calystegia/Convolvulus, Convolvulaceae) of Alabama and adjacent states. Phytoneuron 2013-83: 1–12.

McKenzie, P.D. 2013. Review: Yatskievych’s Flora of Missouri, Vol. 3. Phytoneuron 2013-84: 1–2.

Morales, J.F. 2013. Forchhammeria iltisii (Resedaceae), una nueva especie del bosque seco de Costa Rica. Phytoneuron 2013-85: 1–7.

Thompson, R.L., D.B. Poindexter, K. Rivers Thompson, and P.F. Threadgill. 2013. Thlaspi alliaceum (Brassicaceae) naturalized in Georgia, Missouri, and North Carolina. Phytoneuron 2013-86: 1–13.

Singhurst, J.R., J.N. Mink, and W.C. Holmes. 2013. Acer grandidentatum (Sapindaceae) in Montana. Phytoneuron 2013-87: 1–4.

Groberg, M.G., S.C. Meyers, P.M. Severns, and K. Amsberry. 2013. Systematic evaluation of Sisyrinchium hitchcockii (Iridaceae): A rare, endemic species of western North America. Phytoneuron 2013-88: 1–6.

Spellenberg, R.W. 2013. Review: Lebgue Keleng and Quíntana Martínez, “Cactáceas de Chihuahua.” Phytoneuron 2013-89: 1–2.

Campbell, J.J.N. and W.R. Seymour, Jr. 2013. Towards a revision of the Rudbeckia fulgida complex (Asteraceae), with description of a new species from the blacklands of southern USA. Phytoneuron 2013-90: 1–27.

Malusa, J., K. Reichardt, R.S. Felger. 2013. Giant sandbur (Cenchrus palmeri, Poaceae) new for Arizona and the United States. Phytoneuron 2013-91: 1–5.

Milsom, J.A. and M. Chamberland. 2013. Mandevilla stans (Apocynaceae) new to the USA flora. Phytoneuron 2013-92: 1–6.

Buthod, A.K. and B.W. Hoagland. 2013. New to Oklahoma: Murdannia keisak (Commelinaceae). Phytoneuron 2013-93: 1–3.

Schneider, A. 2013. Review: Heil, K.D., S.L. O’Kane, L.M. Reeves, and A. Clifford. Flora of the Four Corners Region. Phytoneuron 2013-94: 1–3.

Lebkuecher, J., J. Craft, R. Hankenson, J. Johnson, and J. Martin. 2013. Impacts of nonpoint-source pollution on periphyton characteristics in the West Fork of the Red River in north-central Tennessee. Phytoneuron 2013-95: 1–7.

Singhurst, J.R., J.N. Mink, and W.C. Holmes. 2013. Senna bicapsularis (Fabaceae) adventive in the USA (Texas). Phytoneuron 2013-96: 1–3.

Nesom, G.L. 2013. Review: Brandvain, Kenney, Flagel, Coop, and Sweigart. “Speciation and introgression between Mimulus nasutus and Mimulus guttatus.” Phytoneuron 2013-97: 1–9.

Lance, R.W. 2013. A new endemic species of Crataegus (Rosaceae) from western North Carolina. Phytoneuron 2013-98: 1–15.