H. Ballard

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Inferring Species Networks from Gene Trees in High-Polyploid North American and Hawaiian Violets (Viola, Violaceae)

Bengt Oxelman, Kjetill S. Jakobsen, Jiří Danihelka, 2011, Systematic biology.

A new Paypayrola (Violaceae) from Panama, with notes about the species complexes for the genus

H. Ballard, 2022, Phytotaxa.

Taxonomic revision of Rinorea ilicifolia (Violaceae) from Africa and Madagascar

H. Ballard, Gregory A. Wahlert, K. Gilland, 2020, Kew Bulletin.

Ixchelia, a new genus of Violaceae from Mexico and Mesoamerica

H. Ballard, Gregory A. Wahlert, J. Paula-Souza, 2015, Brittonia.

Re-establishment of the name Pombalia , and new combinations from the polyphyletic Hybanthus (Violaceae)

H. Ballard, J. Paula-Souza, J. PAULA-SOUZA, 2014 .

Transcriptomics Identifies Modules of Differentially Expressed Genes and Novel Cyclotides in Viola pubescens

S. Wyatt, K. Childs, M. Bowman, 2019, Front. Plant Sci..

The evolution of pollen heteromorphism inViola: A phylogenetic approach

S. Nadot, I. Dajoz, H. Ballard, 2000, Plant Systematics and Evolution.

A Revised Phylogenetic Classification for Viola (Violaceae)

J. Watson, J. Danihelka, A. R. Flores, 2022, bioRxiv.

Ixchelia, a new genus of Violaceae from Mexico and Mesoamerica

H. Ballard, Gregory A. Wahlert, J. Paula-Souza, 2015, Brittonia.

A Taxonomic Revision of Collinsonia (Lamiaceae) Based on Phenetic Analyses of Morphological Variation

P. Cantino, H. Ballard, J. Peirson, 2006 .

Evidence for the recognition of Viola appalachiensis

D. Wujek, H. Ballard, 1994 .

Studies in the vascular flora of the southeastern United States. VI

A. Weakley, B. Sorrie, H. Ballard, 2020, Journal of the Botanical Research Institute of Texas.

Genomic Origins of Potato Polyploids : GBSSI Gene Sequencing Data

D. Spooner, Z. Polgar, S. Jansky, 2008 .

Genome size, ploidy levels, and development of novel SSR primer to evaluate genetic diversity of Corylopsis Siebold & Zucc. germplasm collections

M. Pooler, H. Ballard, M. Kramer, 2022, Genetic Resources and Crop Evolution.

Gibberellins are involved but not sufficient to trigger a shift between chasmogamous-cleistogamous flower types in Viola pubescens1

S. Wyatt, Yunjing Wang, H. Ballard, 2013 .

A Phylogeny of the Violaceae (Malpighiales) Inferred from Plastid DNA Sequences: Implications for Generic Diversity and Intrafamilial Classification

T. Marcussen, H. Ballard, Gregory A. Wahlert, 2014 .

Influence of annual fluctuations in environmental conditions on chasmogamous flower production in Viola striata1

H. Ballard, Aurea C. Cortes-Palomec, 2006 .

Genetic Variability of Three Annual Halophyte Species in an Inland Salt Marsh Through Time

I. Ungar, H. Ballard, C. Carter, 2016 .

Shrinking the Violets: Phylogenetic Relationships of Infrageneric Groups in Viola (Violaceae) Based on Internal Transcribed Spacer DNA Sequences

K. Sytsma, H. Ballard, R. Kowal, 1998 .

A Phylogeny of Rinorea (Violaceae) Inferred from Plastid DNA Sequences with an Emphasis on the African and Malagasy Species

H. Ballard, Gregory A. Wahlert, 2012 .

Phenetic analysis shows conspecificity between Hispaniolan Viola domingensis Urban and North American Viola macloskeyi sensu lato (Violaceae)

D. Casamatta, M. M. Hall, R. Verb, 2008, Brittonia.

Phenetic and cladistic studies help clarify species assemblages in Passiflora section Dysosmia (Passifloraceae)

H. Ballard, H. Svoboda, 2018, Brittonia.

Molecular phylogenetic relationships among Lemnaceae and Araceae using the chloroplast trnL-trnF intergenic spacer.

G. Rothwell, R. Stockey, H. Ballard, 2004, Molecular phylogenetics and evolution.

Leaf Phenology , Fecundity , and Biomass Allocation of the Invasive Shrub Lonicera maackii ( Rupr . ) Maxim in Contrasting Light Environments

D. Miles, K. Hartman, K. Brown, 2004 .

Viola pluviaesp. nov. (Violaceae), a member of subsect.Stolonosaein the Pacific Northwest region of North America

T. Marcussen, H. Ballard, Kim Blaxland, 2018, Nordic Journal of Botany.

Evolutionary relationships, interisland biogeography, and molecular evolution in the Hawaiian violets (Viola: Violaceae).

J. Havran, K. Sytsma, H. Ballard, 2009, American journal of botany.

E VOLUTIONARY RELATIONSHIPS, INTERISLAND BIOGEOGRAPHY, AND MOLECULAR EVOLUTION IN THE HAWAIIAN VIOLETS ( VIOLA : VIOLACEAE) 1

J. Havran, K. Sytsma, H. Ballard, 2009 .

A phenetic analysis of the Bakeridesia integerrima complex (Malvaceae)

P. Cantino, H. Ballard, Aliya A. Donnell, 2015, Brittonia.

Callianthe (Malvaceae): A New Genus of Neotropical Malveae

P. Cantino, H. Ballard, Aliya A. Donnell, 2012 .

Two new species of Hybanthus (Violaceae) from Central America and a regional key for the genus

N. Zamora, H. Ballard, M. Wetter, 1997 .

CLIFF CUDWEED AT SPECIFIC RANK IN PSEUDOGNAPHALIUM (ASTERACEAE: GNAPHALIEAE)

G. Nesom, H. Ballard, Danielle M. S. Feller, 2004 .

Systematic studies in Neotropical Rinorea (Violaceae): Two new sections and a new generic segregate

H. Ballard, Gregory A. Wahlert, Saúl E. Hoyos-Gómez, 2018, Brittonia.

Afrohybanthus (Violaceae), a new genus for a distinctive and widely distributed Old World hybanthoid lineage

H. Ballard, Benjamin J. Flicker, 2015 .

Viola lilliputana sp. nov. (Viola sect. Andinium, Violaceae), one of the world's smallest violets, from the Andes of Peru

H. Ballard, H. Iltis, 2012, Brittonia.

Inferring nativity and biogeographic affinities of central and marginal populations of Froelichia floridana (Amaranthaceae) from Inter-Simple Sequence Repeat (ISSR) markers1

H. Ballard, Ross A. McCauley, 2002 .

The potential role of two LEAFY orthologs in the chasmogamous/cleistogamous mixed breeding system of Viola pubescens (Violaceae)1

E. Stockinger, S. Wyatt, V. Nadella, 2017, The Journal of the Torrey Botanical Society.

Violaceae

H. Ballard, J. de Paula-Souza, G. A. Wahlert, 1995, Plants of the Rio Grande Delta.

Arabidopsis Ecotypes: A Model for Course Projects in Organismal Plant Biology & Evolution

S. Wyatt, H. Ballard, 2007 .

Systematics of North American Froelichia (Amaranthaceae subfam. Gomphrenoideae) II: Phylogeny and biogeographic speciation patterns inferred from nrITS sequence data

H. Ballard, Ross A. McCauley, 2007, Brittonia.