I just went online and found this example for you:
For example, this Bell Nursery (USA) grows more than 100 million plants per year.
They use 350 acres company-owned field and 75 acres company-owned greenhouse for production. This is huge operation. See their website for more info: https://bellnursery.com/facilities-and-production/
They produce these fresh plants and then ship to huge stores (such as Home Depot) for selling. Home Depot are huge chain-stores in the US, which sell a lot of materials for building houses, including gardening stuff (ex. plants, flowers....).
Thanks for your answer but i mean the number or list of species that are grown by plant factory system. i read some reports but 95% of them was about leafy vegetable.
i want to know are cut flower product with this system or not?