| Answer | Crossword Clue |
|---|---|
| INDIGOS | Plants that yield a blue dye |
| WOADS | Blue-dye plants |
| ANILS | Blue-dye plants |
| WOADS | Blue dye plants. |
| yellowwood | Any of a number of trees that have yellowish timber or yield a yellow dye, in particular |
| goldthread | a N. American woodland ranunculaceous plant, with slender yellow roots that yield a medicinal tonic and a dye |
| goldthreads | GOLDTHREAD, a N. American woodland ranunculaceous plant, with slender yellow roots that yield a medicinal tonic and a dye |
| safflowers | An orange-flowered, thistlelike Eurasian plant with seeds that yield an edible oil and petals that were formerly used to produce a red or yellow dye |
