Fig. 3

Frequency of appearing of dragon’s blood (tree and resin) names in literature from 1st century ad to 2000 ad, T/R means that the name is given to both the tree and the resin, references listed in Table 2

Frequency of appearing of dragon’s blood (tree and resin) names in literature from 1st century ad to 2000 ad, T/R means that the name is given to both the tree and the resin, references listed in Table 2