Available today · In progress being built · Planned on the roadmap
Index Operum
Browse & discovery
Plant browse
All ~45,000 medicinal-plant taxa, searchable and linkable.
Entity records
Each entity's register of connections, on the Explore page.
Interactive ontology graph
See how a plant connects to its compounds, targets, effects, and evidence.
Search autosuggest
Type-ahead over plants, plus curated compounds, targets, and citations.
Autosuggest across all compounds & targets
Extend type-ahead to every one of the ~185,000 compounds and all targets.
Herbarium
A gallery of antique Köhler specimen plates.
Data & coverage
Medicinal plants
~45,000 taxa, validated against NCBI Taxonomy (Viridiplantae).
Phytochemicals
~185,000 plant-associated compounds with structures and properties.
Protein targets
1,656 molecular targets, linked to the compounds that act on them.
Clinical-trial evidence
2,400+ plant- and ingredient-trial associations.
Literature evidence
Scientific papers linked by DOI to compounds and plants.
Medicinal fungi
A separate, kingdom-typed module for fungal natural products.
Ontology & interoperability
FAIR knowledge graph
A reasoning-ready RDF/OWL ontology, not a flat table.
Per-fact provenance
Source and citation attached to facts, where available.
NCBI Taxonomy alignment
Each plant linked to its NCBI taxon identifier.
ChEBI alignment
Phytochemical classes mapped to ChEBI, with slim subtree modules.
Multiomic gene-target layer
Targets resolved to NCBI Gene, with parallel gene edges.
Standards alignment
Mappings to the Relation Ontology, SPAR, NCIT, and the Gene Ontology.
Persistent resolvable IRIs
Stable, dereferenceable identifiers for every entity.
Download & access
Full ontology
The complete enriched graph as RDF/XML (hosted on Box).
Schema
The empty TBox — classes, properties, and axioms.
Custom slices
Build filtered CSV / JSON-LD slices in your browser — no server.
RDF / Turtle / OWL slices
Custom slices in the full set of RDF serializations.
Target, effect & citation slices
Extend the slice builder beyond plants and compounds.
Versioned Zenodo release
A citable, archived release with a DOI.
SPARQL endpoint
Live query access, with documented example queries.
AI & machine learning
ML-ready graph
Typed and fingerprint-bearing — ready for graph embedding.
Embedding & link-prediction recipes
Worked examples for target identification and repurposing.