As nouns,
Croton eluteria is a hyponym of
Croton tiglium; that is, Croton eluteria is a
word with a more specific, narrower meaning than
Croton tiglium:
Croton tiglium: tropical Asiatic shrub; source of croton oil
Croton eluteria: West Indian shrub with aromatic bark
Other hyponyms of Croton tiglium include
cascarilla.