Crossword clue: a scaly parasitic plant (conopholis americana) found in oak woods in the united states; -- called also cancer root.
1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
tall herb of eastern North America and Asia having blue berrylike fruit and a thick knotty rootstock formerly used medic