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Definition of Old-field toadflax
1. Noun. North American plant having racemes of blue-violet flowers. 
Exact synonyms: Blue Toadflax, Linaria Canadensis
Generic synonyms: Butter-and-eggs, Devil's Flax, Linaria Vulgaris, Toadflax, Wild Snapdragon
Generic synonyms: Butter-and-eggs, Devil's Flax, Linaria Vulgaris, Toadflax, Wild Snapdragon



