Anno Domini 2026 · Editio Prima · Open Access

A knowledge graph of medicinal-plant pharmacology.

POPPy is the first resource to link plants, their phytochemicals, molecular targets, and therapeutic evidence into a single FAIR, machine-readable graph — every fact traced to its source, and built to be read by machines as readily as by people.

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The collection, by the numbers

44,769
Plantae
medicinal plants & taxa
185,041
Composita
phytochemical compounds
1,656
Proteinae
protein targets
Quaestiones

What can you ask POPPy?

Cross-domain questions answered in a single traversal — because plant, chemistry, protein target, therapeutic effect, and evidence all live in one graph.

I

Find a plant source for a target

Which medicinal plants make compounds that act on a given protein or gene — and which of those are backed by clinical-trial or literature evidence.

See COX-2 in the graph →
II

Get a mechanism dossier

For one species, its phytochemicals → molecular targets → therapeutic effects, with the source DOI or trial behind every link.

See Curcuma longa in the graph →
III

Spot convergent pharmacology

Taxonomically distant plants whose different chemistries converge on the same target or pathway — alternative sources and ethnobotanical convergence.

See NF-κB in the graph →
Tabulae

Featured species

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Open access, freely reproducible

POPPy is released under CC BY-NC 4.0. Download OWL/Turtle/RDF exports.