OOIR: Observatory of International Research

Papers

(The TQCC of International Journal of Plant Sciences is 4. 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 2020-03-01 to 2024-03-01.)

Article	Citations
Herbaria as Big Data Sources of Plant Traits	36
Richness and Distribution of Salvia Subg. Calosphace (Lamiaceae)	30
Molecular Phylogenetics of Ligusticum (Apiaceae) Based on nrDNA ITS Sequences: Rampant Polyphyly, Placement of the Chinese Endemic Species, and a Much-Reduced Circumscription of the	27
Can a Botanic Garden Metacollection Better Conserve Wild Plant Diversity? A Case Study Comparing Pooled Collections with an Ideal Sampling Model	26
Pollination Ecology, Specialization, and Genetic Isolation in Sympatric Bee-Pollinated Salvia (Lamiaceae)	25
The Middle Permian South Ash Pasture Assemblage of North-Central Texas: Coniferophyte and Gigantopterid Herbivory and Longer-Term Herbivory Trends	23
Evolution of Floral Morphology and Symmetry in the Miconieae (Melastomataceae): Multiple Generalization Trends within a Specialized Family	22
Early Eocene Spore and Pollen Assemblages from the Laguna del Hunco Fossil Lake Beds, Patagonia, Argentina	21
The History of Herbivory on Sphenophytes: A New Calamitalean with an Insect Gall from the Upper Pennsylvanian of Portugal and a Review of Arthropod Herbivory on an Ancient Lineage	19
Voltzian Conifers of the South Ash Pasture Flora (Guadalupian, Texas): Johniphyllum multinerve gen. et sp. nov., Pseudovoltzia sapflorensis sp. nov., and Wantus acaulis gen. et sp	17
The Chloroplast Genome ofSalvia: Genomic Characterization and Phylogenetic Analysis	15
Bee Exclusion in Bird-Pollinated Salvia Flowers: The Role of Flower Color versus Flower Construction	13
Observations on Vegetative Branching in Cycads	13
Phylogenetic Relationships and Character Evolution in NeotropicalPhyllanthus(Phyllanthaceae), with a Focus on the Cuban and Caribbean Taxa	12
Ovulate Cones of Schizolepidopsis ediae sp. nov. Provide Insights into the Evolution of Pinaceae	12
The Next Generation of Adaptive Radiation Studies in Plants	11
A Small Heterophyllous Vine Climbing on Psaronius and Cordaites Trees in the Earliest Permian Forests of North China	11
Integrating DNA Sequences with Morphological Analysis Clarifies Phylogenetic Position of Salvia grandifolia (Lamiaceae): An Enigmatic Species Endemic to Southwestern China	11
Rhizophydites matryoshkaegen. et sp. nov. (Fossil Chytridiomycota) on Spores of the Early Land PlantHorneophyton lignierifrom the Lower Devonian Rhynie Chert	11
Fossil Fruits and Seeds of Zingiberales from the Late Cretaceous–Early Cenozoic Deccan Intertrappean Beds of India	10
Ex Situ Conservation of Large and Small Plant Populations Illustrates Limitations of Common Conservation Metrics	10
Fossil Dennstaedtiaceae and Hymenophyllaceae from the Early Eocene of the Pacific Northwest	9
Pollination in the Desert: Adaptation to Bees and Birds inSalvia rhombifolia	9
Outcrossing Mating System of the Early-Divergent Moonwort Fern (Botrychium lunaria, Ophioglossaceae) Revealed in the European Alps	9
From Genomes to Populations: A Meta-analysis and Review of Fern Population Genetics	9

First Reports of Vivipary in Neotropical Melastomataceae	9
Morphology and Systematic Affinities of Platanus dissecta Lesquereux (Platanaceae) from the Miocene of Western North America	9
Floral Organogenesis and Morphogenesis ofStaphisagria(Ranunculaceae): Implications for the Evolution of Synorganized Floral Structures in Delphinieae	8
What Is a Pseudobulb? Toward a Quantitative Definition	8
First South American Record ofWinteroxylon, Eocene of Laguna del Hunco (Chubut, Patagonia, Argentina): New Link to Australasia and Malesia	7
Ventilago (Rhamnaceae) Fruit from the Middle Eocene of Central Tibet, China	7
The Ancestral Conifer Cone: What Did It Look Like? A Modern Trait-Evolution Approach	7
Pollen Grains Found in Pollen Cones of Schidolepium Heer (Pinopsida) from the Middle Jurassic of East Siberia, Russia	7
Early Records of Melastomataceae from the Middle–Late Paleocene Rain Forests of South America Conflict with Laurasian Origins	6
Endocarps of Pyrenacantha (Icacinaceae) from the Early Oligocene of Egypt	6
Evolutionary Signal of Leaflet Anatomy in the Zamiaceae	6
Fossil Capsular Valves ofKoelreuteria(Sapindaceae) from the Eocene of Central Tibetan Plateau and Their Biogeographic Implications	6
Inflorescence Structure in Laurales—Stable and Flexible Patterns	6
Stigmaria: A Review of the Anatomy, Development, and Functional Morphology of the Rootstock of the Arboreous Lycopsids	6
Southern High-Latitude Plant-Insect Interactions from the Miocene of Tierra del Fuego, Argentina	6
Crops and the Seed Mass–Seed Output Trade-Off in Plants	6
Low-Trunk Epiphytic Fern Gametophyte and Sporophyte Occurrence Is Influenced by Moss Height and Density in a Costa Rican Lowland Tropical Rain Forest	6
Breeding Systems and Pollen-Ovule Ratios inEricaSpecies (Ericaceae) of the Cape Floristic Region	6
Red and Silver Maples in the Neogene of Western North America: Fossil Leaves and Samaras of Acer Section Rubra	6
Omniastrobus gen. nov., an Emsian Plant with Implications for the Evolution of Heterospory in the Early Devonian	6
Small-Scale Population Connectivity and Genetic Structure in Canada Thistle (Cirsium arvense)	6
The First Plants to Recolonize Western North America Following the Cretaceous-Paleogene Mass Extinction Event	6
What to Do with Prototaxites?	6
R2R3-MYBGene Evolution in Plants, Incorporating Ferns into the Story	6
Shoot Apical Meristem Stability and Non-Fibonacci Phyllotaxy in Ribbed Cacti	5
Evolution, Pollination Biology, and Species Richness ofSalvia(Lamiaceae)	5
Pollination Services to Impatiens capensis (Balsaminaceae) Are Maintained across an Urbanization Gradient	5
Discordance in a South African Memecylon Clade (Melastomataceae): Evidence for Reticulate Evolution	5
An Early Paleocene Carpoflora from the Denver Basin of Colorado, USA, and Its Implications for Plant-Animal Interactions and Fruit Size Evolution	5
Evolution and Phylogeny of Altingiaceae: Anatomically Preserved Infructescences from Late Cretaceous Deposits of Vancouver Island, British Columbia, Canada	5
Late Cretaceous Diversification of Cupressaceous Conifers: A Taiwanioid Seed Cone from the Eden Main, Vancouver Island, British Columbia, Canada	5
Comparative Pollination Ecology of Five EuropeanEuphorbiaSpecies	5
Flower Structure and Development ofSpondias tuberosaandTapirira guianensis(Spondioideae): Implications for the Evolution of the Unisexual Flowers and Pseudomonomery in Anacardiaceae	5
Genetic Patterns of Zamia in Florida Are Consistent with Ancient Human Influence and Recent Near Extirpation	5
Fourier Transform Infrared Spectroscopy Studies of Cretaceous Gymnosperms from the Santa Cruz Province, Patagonia, Argentina	5
Melloniflora, a New Extinct Multiparted Flower from the Early Cretaceous of Virginia, USA	5
A New Interpretation of the Successive Cambia of Some Nyctaginaceae as Interxylary Phloem	5
How Are Systematics and Biological and Ecological Features Related to Silica Content in Plants? A Study of Species from Southern South America	5
Review of the Fossil Record ofPassiflora, with a Description of New Seeds from the Pliocene Gray Fossil Site, Tennessee, USA	5
Morphology and Affinities of Pantocarpon Fruits (cf. Apiales: Torricelliaceae) from the Maastrichtian Deccan Intertrappean Beds of Central India	5
Pollinator Activity and the Fecundity of a Rare and Highly Threatened Honeybush Species along a Highway in the Cape Floristic Region	5
Wood Anatomy of Modern and Fossil Fagales in Relation to Phylogenetic Hypotheses, Familial Classification, and Patterns of Character Evolution	5
Genetic Diversity Assessment of Ex Situ Collections of EndangeredQuercus hinckleyi	4
“Sweet Rain” from Bat-Pollinated Flowers: How Does Sugar Concentration Modulate Nectar Retention?	4
Inflorescence and Flower Development in Orchidantha chinensis T. L. Wu (Lowiaceae; Zingiberales): Similarities to Inflorescence Structure in the Strelitziaceae	4
Herbarium Specimens May Provide Biased Flowering Phenology Estimates for Dioecious Species	4
Associations among Cotyledon Developmental Stability, Canalization, and Phenotypic Plasticity in Response to Shading and Burial Depth in Five Herbaceous Species at Early Seedling Stage	4
Sexual Conflict in Hermaphroditic Flowers of an African Aloe	4
Magnolia tamaulipana: Genetic Evaluation Shows High Vulnerability in a Narrow Distribution	4
Evolution and Development of Staminodes in Paronychia (Caryophyllaceae)	4

Conifer Diversity in the Middle Triassic: New Data from the Fossillagerstätte Kühwiesenkopf/Monte Prà della Vacca (Pelsonian, Anisian) in the Dolomites (Northeastern Italy)	4
Small Populations on Small Islands: What Chance Does an Orchid Have?	4
Hofmeister’s Rule’s Paradox: Explaining the Changeable Carpel Position in Caryophyllaceae	4
Catanthus, an Extinct Magnoliid Flower from the Early Cretaceous of Portugal	4
Variability of Cinnamomum (Lauraceae) Leaf Architecture in Relation to Climatic and Historical Constraints: Implications for Paleoclimatic Studies	4
Floral Variation across Three Varieties of the Landscape-Dominant TreeMetrosideros polymorpha(Myrtaceae): Insights from a Hawaii Island Common Garden	4
Diversification and Biogeography of North American Thistles (Cirsium: Carduoideae: Compositae): Drivers of a Rapid Continent-Wide Radiation	4
The Influence of Anthropogenic Disturbance on the Genetic Diversity ofCeratozamia fuscoviridis(Zamiaceae)	4