OOIR: Observatory of International Research

Papers

(The H4-Index of American Journal of Botany is 23. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-06-01 to 2025-06-01.)

Article	Citations
First Bignoniaceae liana from the Miocene of South America and its evolutionary significance	77
Direct tracking of pollen with quantum dots reveals surprising uniformity in dispersal distance across 11 populations of an annual plant	66
Molecular framework underlying floral bilateral symmetry and nectar spur development in Tropaeolum, an atypical member of the Brassicales	59
Green light attenuates blue‐light‐induced chloroplast avoidance movement in Arabidopsis and Landoltia punctata	55
Genetic variation of the relict maple Acer miyabei: uncovering its history of disjunct occurrence and the role of mountain refugia in shaping genetic diversity	53
Young evolutionary origins of dioecy in the genus Asparagus	51
Heterotic growth of hybrids of Arabidopsis thaliana is enhanced by elevated atmospheric CO₂	49
Differences in individual flowering time change pollen limitation and seed set in three montane wildflowers	46
Corrigendum to “The tiny drivers behind plant ecology and evolution”	43
Reconstructing the introduction history of the invasive grass Taeniatherum caput‐medusae subsp. asperum in the western United States: Low within‐population genetic diversity does	43
Symbiotic fungi alter plant resource allocation independent of water availability	42
Scaling relationships of leaf vein and areole traits versus leaf size for nine Magnoliaceae species differing in venation density	34
Anatomy of a mega‐radiation: Biogeography and niche evolution in Astragalus	33
Night and day: Contributions of diurnal and nocturnal visitors to pollen dispersal, paternity diversity, and fruit set in an early‐blooming shrub, Daphne jezoensis	31
Hyperaccumulation of nickel but not selenium drives floral microbiome differentiation: A study with six species of Brassicaceae	30
Effects of temperature on seed dormancy and germination of the coastal dune plant Viola grayi: germination phenology and responses to winter warming	28
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	27
Molecular phylogeny and evolution of inflorescence types in Eperua	25
Botany and geogenomics: Constraining geological hypotheses in the neotropics with large‐scale genetic data derived from plants	25
The first Gondwanan Euphorbiaceae fossils reset the biogeographic history of the Macaranga‐Mallotus clade	25
Relationships among sporophytic and gametophytic traits of 27 subtropical montane moss species	24
Growth and tissue nutrient responses of adults of Sarracenia alata to prey exclusion, nutrient addition, and neighbor reduction	23
Variations in morphological and epidermal features of shade and sun leaves of two species: Quercus bambusifolia and Q. myrsinifolia	23
How early does the selfing syndrome arise? Associations between selfing ability and flower size within populations of the mixed‐mater Collinsia verna	23