The sources

Every normalized plant evidence row resolves to this registry: 130 sources, 66 of them primary — labs, field programs, and original curations whose independent lineages carry the vote. Compilations corroborate; they never vote, and a rater's republications count once. Range, status, hardiness, and maintenance references answer separate questions and never enter the fire vote. Each source page lists every plant with a published page assertion or evidence row. A larger normalized research derivative, when one exists, is reported separately rather than being misdescribed as page content. The derivation rule itself is on the methodology page.