Epilobium canum canum epi·lo·bium·canumcanum uncommon noun 1. shrublet of southwestern United States to Mexico having brilliant scarlet flowers SynonymsCalifornia fuchsiahumming bird's trumpetEpilobium canum canumZauschneria californica Related words Broader terms shrublet Parts Epilobium WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.