Golak Khandual's block print designs for us are all botanical drawings. This one, in the smaller indigo version, is of the castor plant.
... here it is in red & yellow
... and here is the tridax in red/black. The reds are alizarin, a non-toxic dye derived from coal tar, all others are vegetable origin, including the indigo. These prints will be available at the Kala Ghoda Festival, Mumbai [first 5 days]