Robert W. Freckmann Herbarium


  Acorus americanus (Raf.) Raf. image
Photographer: Dennis W. Woodland           
Family Acoraceae
Acorus americanus (Raf.) Raf.
sweet-flag
Acorus: the Latin akoron was the Greek name of an iris
americanus: for America
County distribution map- click for detailed distribution maps.
Detailed Distribution:
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Status: Native
Plant: erect, perennial, emergent semi-aquatic, up to 6' tall; sweet spicy smell when crushed; very long, aromatic, reddish rhizomes
Flower: yellow to brown, tiny, 6-parted; inflorescence a 2"-4" dense, thick, cylindrical spadix protruding from the side of the leaf-like spathe; blooms June-July
Fruit:brown, hard, and dry with 2-3 seeds
Leaf:sweetly aromatic, crowded at the base, long, narrow, sword-like, midvein and 1-5 additional veins mostly equally-raised
Habitat: shallows, ponds, marshes, in water less than 20" deep; in wet, silty soil
(Glossary)

More Information Natural Communities Herbarium Specimens
All Acorus list Google- Images or Text

Flora of North America (off site)
Synonyms 
Acorus calamus auct. non L.
Acorus calamus L. var. americanus (Raf.) H.Wulff
Acorus calamus L. var. americanus Raf.

         
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