6.5 million herbarium sheets became a global research engine.

The project transformed fragile, physical botanical records into a structured digital resource that could support climate and biodiversity research without requiring repeated handling of the original specimens.

The challenge

Kew's herbarium represents centuries of scientific observation. Each sheet carries botanical, geographic and historical value, but physical access creates a practical limit: fragile specimens can only be handled so often, and researchers cannot search handwritten labels, collection notes or historical metadata at modern research speed.

The work needed more than image capture. It required a pipeline that could preserve the physical record, interpret historical scripts, standardize scientific metadata and make the collection searchable without weakening quality controls.

The approach

SBL structured the work as a managed digitization and data-quality pipeline. High-resolution capture created the digital foundation. Expert transcription converted handwritten and historical records into usable text. Botanical metadata was validated so the archive could serve serious research, not just digital storage.

The result

Six and a half million herbarium sheets became more than preserved images. They became a searchable research engine for scientists, institutions and biodiversity teams working across geographies and time periods.

• Researchers gained broader digital access to a collection spanning two centuries.
• Fragile specimens required less physical handling for discovery and reference work.
• Historical botanical data became easier to search, compare and validate.
• The project created a managed pipeline for heritage-scale digitization and metadata quality.