Question

instead of indigo which plant is used​

Answer 1

Answer:

Isatis tinctoria

Explanation:

Instead of it people used woad, a dye made from the plant “Isatis tinctoria” that was chemically identical to the indigo.

Answer 2

Isatis tinctoria

Instead of it people used woad, a dye made from the plant “Isatis tinctoria” that was chemically identical to the indigo.