American Journal of Botany

Article	Citations
Morphological and genetic evidence suggest gene flow among native and naturalized mint species	60
Symbiotic fungi alter plant resource allocation independent of water availability	50
Adaptation to lower latitudes and lower elevations precedes the evolution of hummingbird pollination in western North American Penstemon	49
Cryptic species diversity in a widespread neotropical tree genus: The case ofCedrela odorata	46
Microbial effects on plant phenology and fitness	40
Issue Information	36
Highlighted articles for January 2022	36
Polyploid goldback and silverback ferns (Pentagramma) occupy a wider, colder, and wetter bioclimatic niche than diploid counterparts	36
Shoot dimorphism enables Sequoia sempervirens to separate requirements for foliar water uptake and photosynthesis	33
Spiny but photogenic: Amateur sightings complement herbarium specimens to reveal the bioregions of cacti	32
Hydraulic architecture with high root‐resistance fraction contributes to efficient carbon gain of plants in temperate habitats	31
Microgeographic variation in early fitness traits of Pinus sylvestris from contrasting soils	29
Predicting invasion risk of grasses in novel environments requires improved genomic understanding of adaptive potential	28
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Green light attenuates blue‐light‐induced chloroplast avoidance movement in Arabidopsis and Landoltia punctata	26
Maternal effects strengthen interactions of temperature and precipitation, determining seed germination of dominant alpine grass species	25
Context‐dependent concordance between physiological divergence and phenotypic selection in sister taxa with contrasting phenology and mating systems	24
Jack pine of all trades: Deciphering intraspecific variability of a key adaptive trait at the rear edge of a widespread fire‐embracing North American conifer	24
What determines the evolutionary trajectories of wild plant species? Approaches to the study of quantitative fitness‐related traits	24
Corrigendum	24
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Highlighted articles for April 2022	23
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The photoaerogens: algae and plants reunited conceptually	21
Issue Information	20

Issue Information	20
Highlighted articles for March 2022	20
Issue Information	19
Rethinking pathways to the dioecy–polyploidy association: Genera with many dioecious species have fewer polyploids	18
Doubling down on polyploid discoveries: Global advances in genomics and ecological impacts of polyploidy	18
First Bignoniaceae liana from the Miocene of South America and its evolutionary significance	18
Little evidence for homoeologous gene conversion and homoeologous exchange events in Gossypium allopolyploids	18
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The link between ancient whole‐genome duplications and cold adaptations in the Caryophyllaceae	18
Paleohistology of the Cretaceous resin‐producing conifer Geinitzia reichenbachii using X‐ray synchrotron microtomography	18
Continuous inbreeding affects genetic variation, phenology, and reproductive strategy in ex situ cultivated Digitalis lutea	17
Molecular phylogeny and evolution of inflorescence types in Eperua	17
Aging varies greatly within a single genus: A demographic study of Rhododendron spp. in botanic gardens	16
Complex meristematic activity induced by Eucecidoses minutanus on Schinus engleri turns shoots into galls	16
Selection on early survival does not explain germination rate clines in Mimulus cardinalis	15
Hydrocytium expands the phylogenetic, morphological, and genomic diversity of the poorly known green algal order Chaetopeltidales	15
Nuclear and chloroplast DNA phylogeography reveals high genetic diversity and postglacial range expansion in Quercus mexicana	15
Incomplete partitioning of pollinators byLinum suffruticosumand its coflowering congeners	15
Effect of temporal changes in stamen position on reproductive success in flowers with many stamens: Manipulations of stamen position	15
Structural adaptations in plants from the humid equatorial Andes indicate a trade‐off between hydraulic transport efficiency and safety	14
A comprehensive phylogenomic study of the monocot order Commelinales, with a new classification of Commelinaceae	14
Herbarium specimens reveal century‐long trait shifts in poison ivy due to anthropogenic CO2 emissions	14
1, 2, 3, GO! Venture beyond gene ontologies in plant evolutionary research	13
Population structure and natural selection across a flower color polymorphism in the desert plant Encelia farinosa	13
An evolutionary framework for understanding habitat partitioning in plants	13
Issue Information	13
Unraveling subcellular functional traits: Adaptive insights into chloroplast ultrastructure in nonmodel species	13
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Diurnal patterns of floral volatile emissions in three species of Narcissus	13
“As if they discovered it by the scent”: improving our understanding of the chemical ecology, evolution, and genetics of floral scent and its role in pollination	12
Growth and fecundity of colonizing hybrid Raphanus populations are environmentally dependent	12
Anatomy of a mega‐radiation: Biogeography and niche evolution in Astragalus	12
Community genomics: a community‐wide perspective on within‐species genetic diversity	12
Issue Information	12
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Underground carbohydrate stores and storage organs in fire‐maintained longleaf pine savannas in Florida, USA	12
Target sequence data shed new light on the infrafamilial classification of Araceae	12
Candidate genes and signatures of directional selection on fruit quality traits during apple domestication	12
Relationships among sporophytic and gametophytic traits of 27 subtropical montane moss species	12
Thanks to our Valued Reviewers—2023	12
Night and day: Contributions of diurnal and nocturnal visitors to pollen dispersal, paternity diversity, and fruit set in an early‐blooming shrub, Daphne jezoensis	11
Fossil evidence for Paleocene diversification of Araceae: Bognerospadix gen. nov. and Orontiophyllum grandifolium comb. nov.	11
Heterotic growth of hybrids of Arabidopsis thaliana is enhanced by elevated atmospheric CO2	11
Sex‐specific scaling of leaf phosphorus vs. nitrogen under unequal reproductive requirements in Eurya japonica, a dioecious plant	11
Seasonal patterns of callose deposition and xylem embolism in five boreal deciduous tree species	11
Botany and geogenomics: Constraining geological hypotheses in the neotropics with large‐scale genetic data derived from plants	11
Dynamic plastid and mitochondrial genomes in Chaetopeltidales (Chlorophyceae) and characterization of a new chlorophyte taxon	11
The contribution of carbon budget to masting intervals in Veratrum album populations inhabiting different elevations	11
Plasmodesmata and hormones: pathways for plant development	11
New Fagaceous pollen taxa from the Miocene Søby flora of Denmark and their biogeographic implications	10

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Support for Baker's law: Facultative self‐fertilization ability decreases pollen limitation in experimental colonization	10
Simulated pollinator decline has similar effects on seed production of female and hermaphrodite Lobelia siphilitica, but different effects on selection on floral traits	10
Issue Information	10
Settling a family feud: a high‐level phylogenomic framework for the Gentianales based on 353 nuclear genes and partial plastomes	10
Why honeybees are poor pollinators of a mass‐flowering plant: Experimental support for the low pollen quality hypothesis	10
Direct tracking of pollen with quantum dots reveals surprising uniformity in dispersal distance across 11 populations of an annual plant	10
Evolution and biogeography ofMemecylon	10
Complementary roles of hummingbirds and bees: Pollen pickup, pollen deposition, and fruit production in the distylous Palicourea rigida	10
Developmental and genetic basis of the androgynophore in Gynandropsis gynandra	10
Cretaceous and Paleocene fossils reveal an extinct higher clade within Cornales, the dogwood order	10
Quantifying the effect of shade on cuticle morphology and carbon isotopes of sycamores: present and past	10
Variations in water economy traits in two Sphagnum species across their distribution boundaries	10
Nectar addition changes pollinator behavior but not plant reproduction in pollen‐rewarding Lupinus argenteus	10
Plastid phylogenomics and molecular evolution of Thismiaceae (Dioscoreales)	10
Issue Information	10
Plastic and quantitative genetic divergence mirror environmental gradients among wild, fragmented populations of Impatiens capensis	10
A bump in the node: The hydraulic implications of rhizomatous growth	10
Oomycete communities in lowland tropical forest soils vary in species abundance and comprise saprophytes and pathogens of seeds and seedlings of multiple plant species	10
Traditional medicinal use is linked with apparency, not specialized metabolite profiles in the order Caryophyllales	10
Characterizing each step of pollination in Phlox drummondii reveals that a single butterfly species predominates in the pollinator assemblage	10
Flexible drought deciduousness in a neotropical understory herb	9
Germination niche breadth of invasive Iris pseudacorus (L.) suggests continued recruitment from seeds with global warming	9
Effects of temperature on seed dormancy and germination of the coastal dune plant Viola grayi: germination phenology and responses to winter warming	9
Climate change is associated with increased allocation to potential outcrossing in a common mixed mating species	9
Perception, regulation, and fitness effects of pollen phytosterols in the bumble bee, Bombus terrestris	9
The role of genotypic and climatic variation at the range edge: A case study in winegrapes	9
The quiet evolutionary response to cellular challenges	9
Prediction of photosynthetic light‐response curves using traits of the leaf economics spectrum for 75 woody species: effects of leaf habit and sun–shade dichotomy	9
Are Cenozoic relict species also climatic relicts? Insights from the macroecological evolution of the giant sedges ofCarexsect.Rhynchocystis(Cyperaceae)	9
Genome‐material costs and functional trade‐offs in the autopolyploid Solidago gigantea (giant goldenrod) series	9
Hyperaccumulation of nickel but not selenium drives floral microbiome differentiation: A study with six species of Brassicaceae	8
Beyond the usual climate? Factors determining flowering and fruiting phenology across a genus over 117 years	8
Phylogeny, classification, and character evolution of tribe Citharexyleae (Verbenaceae)	8
The first Gondwanan Euphorbiaceae fossils reset the biogeographic history of the Macaranga‐Mallotus clade	8
Variation in floral volatiles across time, sexes, and populations of wind‐pollinated Schiedea globosa	8
Genetic variation of the relict maple Acer miyabei: uncovering its history of disjunct occurrence and the role of mountain refugia in shaping genetic diversity	8
Inbreeding in Chinese fir: Insights into the adaptive growth traits of selfed progeny from mRNA, miRNA, and copy number variation	8
Comparative morphology at a crossroads	8
Divergent lineages in a young species: The case of datilillo (Yucca valida), a broadly distributed plant from the Baja California Peninsula	8
The “evil tribe” spreads across the land: A dated molecular phylogeny provides insight into dispersal, expansion, and biogeographic relationships within one of the largest tribes of the sunflower fami	8
Digitized collections elucidate invasion history and patterns of awn polymorphism inMicrostegium vimineum	8
Climate warming causes photobiont degradation and carbon starvation in a boreal climate sentinel lichen	8
Selective forces on the maintenance of outcrossing in an almost exclusively cleistogamous violet species	8
Issue Information	8
Variable expression of cyanide detoxification and tolerance genes in cyanogenic and acyanogenic white clover (Trifolium repens)	8
Molecular framework underlying floral bilateral symmetry and nectar spur development in Tropaeolum, an atypical member of the Brassicales	8
Differences in individual flowering time change pollen limitation and seed set in three montane wildflowers	8
Scaling relationships of leaf vein and areole traits versus leaf size for nine Magnoliaceae species differing in venation density	8
Young evolutionary origins of dioecy in the genus Asparagus	8
Functional traits mediate individualistic species‐environment distributions at broad spatial scales while fine‐scale species associations remain unpredictable	7
The landscape genetics of a mass‐flowering fire‐ephemeral plant	7
The evolution of glandularity as a defense against herbivores in the tarweed clade	7
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Evolutionary divergence of potential drought adaptations between two subspecies of an annual plant: Are trait combinations facilitated, independent, or constrained?	7
Phylogenomics and plastome evolution of a Brazilian mycoheterotrophic orchid, Pogoniopsis schenckii	7
Unique drought resistance strategies occur among monkeyflower populations spanning an aridity gradient	7
The changing biodiversity of the Arctic flora in the Anthropocene	7
Corrigendum to “The tiny drivers behind plant ecology and evolution”	7
Issue Information	7
Ceanothus: Taxonomic patterns in life history responses to fire	7
Variations in morphological and epidermal features of shade and sun leaves of two species: Quercus bambusifolia and Q. myrsinifolia	7
Issue Information	7
Scent‐mediated bee pollination and myrmecochory in an enigmatic geophyte with pyrogenic flowering and subterranean development of fleshy fruits	7
Corrigendum	7
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Structural gradients and anisotropic hydraulic conductivity in the enigmatic eel traps of carnivorous corkscrew plants (Genlisea spp.)	7
Directionally biased habitat shifts and biogeographically informative cytonuclear discordance in the Hawaiian silversword alliance (Compositae)	7
Pollen‐feeding behavior of diverse insects on Geranium delavayi, a flower with large, accessible pollen grains	6
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An exploration into the conversion of dominance to additive genetic variance in contrasting environments	6
Pollen in water of unstable salinity: Evolution and function of dynamic apertures in monocot aquatics	6
Evaluating the definition and distribution of spring ephemeral wildflowers in eastern North America	6
Host tree traits in pasture areas affect forest and pasture specialist epiphyte species differently	6
Rarity patterns of woody plant species are associated with life form and diversification rates in Pacific islands forests	6
Sexual dimorphism in a dioecious species with complex, specialist‐pollinated flowers	6
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Early Eocene infructescences from Argentine Patagonia expand the biogeography of Malvoideae	6
Functional responses to climate change may increase invasive potential ofCarpobrotus edulis	6
How early does the selfing syndrome arise? Associations between selfing ability and flower size within populations of the mixed‐mater Collinsia verna	6

Thanks to our Valued Reviewers—2022	6
Environmental patterns of adaptation after range expansion in Leontodon longirostris: The effect of phenological events on fitness‐related traits	6
On trait variability in harsh habitats	6
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A quick glance at noteworthy articles for April 2021	6
A quick glance at noteworthy articles for June 2021	6
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The evolutionary history of rice azaleas (Rhododendron tschonoskii alliance) involved niche evolution to a montane environment	6
Revisiting phylogeny, systematics, and biogeography of a Pleistocene radiation	6
All tangled up: Unraveling phylogenetics and reticulate evolution in the vining ferns, Lygodium (Schizaeales)	6
Effects of heterospecific pollen on stigma behavior in Campsis radicans: Causes and consequences	6
Quantifying various aspects of chemical diversity in hybrid plants can help understanding ecological consequences of hybridization	6
Highlighted articles for October 2021	6
Nectaries in ferns: their taxonomic distribution, structure, function, and sugar composition	6
Estimating phenological sensitivity in contemporary vs. historical data sets: Effects of climate resolution and spatial scale	6
Molecular signatures of long‐distance oceanic dispersal and the colonization of Pacific islands in Lycium carolinianum	6
Genetic variation in reproductive timing in a long‐lived herbaceous perennial	6
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Evolutionary lability in floral ontogeny affects pollination biology in Trimezieae	6
Sex‐linked gene expression and the emergence of hermaphrodites in Carica papaya	6
Evaluating niche changes during invasion with seasonal models in Capsella bursa‐pastoris	6
Gamete sex and elevation affect genetically based variation for unreduced gamete production in a mixed‐ploidy plant	6
Issue Information	6
Adaptive function of duodichogamy: Why do chestnut trees have two pollen emission phases?	6
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Pollinators exert selection on floral traits in a pollen‐limited, narrowly endemic spring ephemeral	5
A metabolic perspective on polyploid invasion and the emergence of life histories: Insights from a mechanistic model	5
Flood‐driven survival and growth of dominant C4 grasses helps set their distributions along tallgrass prairie moisture gradients	5
Sex‐specific differences in reproductive life‐history traits of the moss Weissia jamaicensis	5
Phylogenomic discordance suggests polytomies along the backbone of the large genus Solanum	5
Spring and autumn phenology in an understory herb are uncorrelated and driven by different factors	5
Issue Information	5
Parenchyma fractions drive the storage capacity of nonstructural carbohydrates across a broad range of tree species	5
“Diminishing returns” for leaves of five age‐groups of Phyllostachys edulis culms	5
Growth rate and life history shape plant resistance to herbivores	5
Growth and tissue nutrient responses of adults of Sarracenia alata to prey exclusion, nutrient addition, and neighbor reduction	5
Influence of plant domestication on plant‐pollinator interactions: Floral attributes and floral visitor communities in wild and cultivated squash plants	5
Investigating historical drivers of latitudinal gradients in polyploid plant biogeography: A multiclade perspective	5
Hybridization in agricultural weeds: A review from ecological, evolutionary, and management perspectives	5
Gone with the wind: Negative genetic and progeny fitness consequences of habitat fragmentation in the wind pollinated dioecious treeBrosimum alicastrum	5
Diversity in conduit and pit structure among extant gymnosperm taxa	5
Fire in the tree: The origin and distribution of fire–adapted traits within conifers and their influence on speciation rates across the conifer phylogeny	5
Incomplete lineage sorting and reticulate evolution mask species relationships in Brunelliaceae, an Andean family with rapid, recent diversification	5
Early Cretaceous abietoid Pinaceae from Mongolia and the history of seed scale shedding	5
Issue Information	5
Evaluation of tropical–temperate transitions: An example of climatic characterization in the Asian Palmate group of Araliaceae	5
Short‐ and long‐term consequences of genome doubling: a meta‐analysis	5
Modelling the carbon balance in bryophytes and lichens: Presentation of PoiCarb 1.0, a new model for explaining distribution patterns and predicting climate‐change effects	5
Floral morphogenesis of Celtis species: implications for breeding system and reduced floral structure	5
Profile of a flower: How rates of morphological evolution drive floral diversification in Ericales and angiosperms	5
Fruit evolution in Hydrophyllaceae	5
The drivers of intraspecific trait variation and their implications for future tree productivity and survival	5
Harmful self‐pollination drives gynodioecy in European chestnut, a self‐incompatible tree	5
Biodiversity at the global scale: the synthesis continues	5
Analyzing trait‐climate relationships within and among taxa using machine learning and herbarium specimens	5
Variation in ripe fruit volatiles across the tomato clade: An evolutionary framework for studying fruit scent diversity in a crop wild relative	5
Evolution of apetaly in the cosmopolitan genusStellaria	5
An adventurous journey toward and away from fern apomixis: Insights from genome size and spore abortion patterns	5
Establishment of an allotetraploid fern species, Lepisorus yamaokae Seriz., between two highly niche‐differentiated parental species	5
Population‐specific responses of floral volatiles to abiotic factors in changing environments	5
How does a self‐incompatible individual transition to self‐compatibility during its lifetime?	5
Understanding the drivers of intraspecific demographic variation: Needs and opportunities	5
Congeneric temperate orchids recruit similar—yet differentially abundant—endophytic bacterial communities that are uncoupled from soil, but linked to host phenology and population size	5
Vessel dimorphism and wood traits in lianas and trees among three contrasting environments	5
The roles of root‐nodulating bacterial associations and cyanogenesis in the freezing sensitivities of herbaceous legumes	4
Insect herbivory on woody broadleaf seedlings along a subtropical elevational gradient supports the resource concentration hypothesis	4
A nuclear phylogenomic study of the angiosperm order Myrtales, exploring the potential and limitations of the universal Angiosperms353 probe set	4
Scaling relationships of lamina mass per unit area, mean thickness, and leaf bulk tissue density across nine diverse species	4
Zirabia cylindrica comb. nov. provides evidence of Doyleales in the Jurassic	4
Get the shovel: morphological and evolutionary complexities of belowground organs in geophytes	4
Issue Information	4
Highlighted articles for December 2022	4
Using target sequence capture to improve the phylogenetic resolution of a rapid radiation in New Zealand Veronica	4
Continental sampling reveals core bacterial and environmentally driven fungal leaf endophytes in Heuchera	4
A new fossilAcmopylewith accessory transfusion tissue and potential reproductive buds: Direct evidence for ever‐wet rainforests in Eocene Patagonia	4
Corrigendum to “Patterns of leaf trait variation underlie ecological differences among sympatric tree species of Damburneya in a tropical rainforest”	4
Variation in frequency of plastid RNA editing within Adiantum implies rapid evolution in fern plastomes	4
Phosphoproteomic analysis of distylous Turnera subulata identifies pathways related to endoreduplication that correlate with reciprocal herkogamy	4
Incongruent phylogenies and their implications for the study of diversification, taxonomy, and genome size evolution of Rhododendron	4
Phenological indicators of resources offered to leaf herbivores in restinga communities	4
Issue Information	4
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An updated infra‐familial classification of Sapindaceae based on targeted enrichment data	4
Apocynaceae wood evolution matches key morphological innovations	4
The relationship of cold acclimation and extracellular ice formation to winter thermonasty in twoRhododendronspecies and their F1hybrid	4
The pollen virome: A review of pollen‐associated viruses and consequences for plants and their interactions with pollinators	4
Phenotypic plasticity made simple, but not too simple	4
Nitrogen‐fixing bacteria boost floral attractiveness in a tropical legume species during nutrient limitation	4
Phylogeny of Lantana, Lippia, and related genera (Lantaneae: Verbenaceae)	4
Genetic relatedness can alter the strength of plant–soil interactions	4
Phylogeography of a gypsum endemic plant across its entire distribution range in the western Mediterranean	4
Fossil evidence for sporeling development of a Mesozoic osmundaceous fern	4
Challenge accepted: Evolutionary lineages versus taxonomic classification of North American shrub willows (Salix)	4