Justicia spicigera

Justicia spicigera Schltdl. is a dye plant.

Colors
It gives a blue colour. Also green, grey, navy, violet or purple according to Azeret Robles

One of the molecules responsible for color is kaempferitrin, isolated by K. L. Euler and M. Alam in 1982.

Parts used
The leaves are used to dye.

Synonyms
Local names in Mexico are muitle in spanish and mohuitli in nahuatl.