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Evidence corrections: plant or fixture name, the page involved, and the supporting source.
Calculator issues: the values you entered, selected plant or fixture, and the result you received.
Measurement data: exact fixture model, PPFD value, distance, dimmer setting, and source or test method.
Taxonomy notes: the asserted name and a botanical, institutional, patent, or other primary source when available.

Send evidence corrections, taxonomy notes, calculator reports, grow-light measurements, dataset questions, or general feedback. Specific source links and measurement details help us evaluate technical corrections more quickly.

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Use the form for source corrections, taxonomy notes, calculator issues, dataset questions, grow-light measurements, or general feedback.