common dogâs tooth violet References Images common dogâs tooth violet plant Ask Anything Homework Help Also known as: Erythronium americanum, adderâs tongue Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of EncyclopĂŠdia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: ErythroniumThe common dogâs tooth violet, or adderâs tongue, of North America is E. americanum. It has yellow flowers and brown-mottled leaves. Several species of Erythronium are grown as rock-garden ornamentals. Read MoreThe common dogâs tooth violet, or adderâs tongue, of North America is E. americanum. It has yellow flowers and brown-mottled leaves. Several species of Erythronium are grown as rock-garden ornamentals. Read More