Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Asparagales
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Flora of North America
Manual of the Southeastern Flora (Small, 1933, 1938)
Northern Blue Flag, Larger Blue Flag, Poison Flag, harlequin blueflag
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Native: north of the Carolinas
NEW! Click here to see a map from Weakley's Flora of the Southeastern US showing range and abundance.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
TO LEARN MORE about this plant, look it up in a good book!