| Dyes |
| Blues |
| Indigos |
| Blue dyes |
| Blue colors |
| Indigo dyes |
| Indigo shrubs |
| Snail anagram |
| Indigo plants |
| Indigo sources |
| Blue-dye plants |
| Blue-dye producers |
| Dye-yielding herbs |
| Dye-yielding plants |
| Dye-yielding shrubs |
| Blue dyes from plants |
| Shrubs yielding indigo |
| Indigo-yielding shrubs |
| Blue dyes obtained from plants |
| ___ Ghost" (Michael Ondaatje novel) |