American Journal of Botany

Aims & Scope

American Journal of Botany (AJB) is an internationally renowned journal publishing innovative, significant research of interest to a wide audience of scientists in all areas of plant biology (including ecology, evolution, physiology, biodiversity, systematics, development, genetics, paleobotany, structure and function), all levels of organization (ecosystem to molecular), and all organisms studied by botanical researchers (including land plants, algae, fungi, lichen, cyanobacteria).

View Aims & Scope

---

Metrics & Ranking

Impact Factor

Year	Value
2025	2.7
2024	2.40

Journal Rank

Year	Value
2024	5134

Journal Citation Indicator

Year	Value
2024	12883

SJR (SCImago Journal Rank)

Year	Value
2024	0.964

Quartile

Year	Value
2024	Q1

---

---

Abstracting & Indexing

Journal is indexed in leading academic databases, ensuring global visibility and accessibility of our peer-reviewed research.

• Scopus
• Google Scholar
• Web of Science
• Medline

---

Subjects & Keywords

Journal’s research areas, covering key disciplines and specialized sub-topics in Agricultural and Biological Sciences and Biochemistry, Genetics and Molecular Biology, designed to support cutting-edge academic discovery.

---

Most Cited Articles

The Most Cited Articles section features the journal's most impactful research, based on citation counts. These articles have been referenced frequently by other researchers, indicating their significant contribution to their respective fields.

• Comparison of whole chloroplast genome sequences to choose noncoding regions for phylogenetic studies in angiosperms: the tortoise and the hare III

  Citation: 1712

  Authors: Joey, Edgar B., Edward E., Randall L.

• PLANT MICROTECHNIQUE: SOME PRINCIPLES AND NEW METHODS

  Citation: 1595

  Authors: Ned, T. P.

• The tortoise and the hare II: relative utility of 21 noncoding chloroplast DNA sequences for phylogenetic analysis

  Citation: 1458

  Authors: Joey, Edgar B., John T., Susan B., Wusheng, Jermey, Kunsiri C., Charles T., Edward E., Randall L.

• Spatial genetic structure of a tropical understory shrub, <i>PSYCHOTRIA OFFICINALIS</i> (RuBIACEAE)

  Citation: 1214

  Authors: Bette A., Victoria L., John, Catherine

• Chloroplast DNA phylogeny, reticulate evolution, and biogeography of <i>Paeonia</i> (Paeoniaceae)

  Citation: 1154

  Authors: Tao, Daniel J., Tod F.

• The Fungi: 1, 2, 3 … 5.1 million species?

  Citation: 1102

  Authors: Meredith

• The functional role of producer diversity in ecosystems

  Citation: 1063

  Authors: Bradley J., Kristin L., David U., Jarrett E., Emmett, Lars, Patricia, Mary I., Andrew

• Polyploidy and angiosperm diversification

  Citation: 1015

  Authors: Douglas E., Victor A., Jim, Charles D., Andrew H., Chunfang, David, Claude W., P. Kerr, Pamela S.

• THE ESSENTIAL ROLE OF CALCIUM ION IN POLLEN GERMINATION AND POLLEN TUBE GROWTH

  Citation: 984

  Authors: James L., Beyoung H.

• Constructing a broadly inclusive seed plant phylogeny

  Citation: 898

  Authors: Stephen A., Joseph W.

---