How fast can orchid seeds blanket the Earth?
“If every seed produced by … Orchis maculata were to survive, in just a few generations they would clothe with one uniform green carpet the entire surface of the land throughout the globe.”
Charles Darwin, The Various Contrivances by Which Orchids Are Fertilised by Insects (1877)
He counted 6,200 seeds in a single capsule. A plant could produce 186,300 in a season. After 3 generations: 6.47 × 1015 plants — enough to cover the Earth 43 times over. Pick a species below and see for yourself.