Sweet Flag (Acorus calamus), also known as Vanilla Grass, is a wetland perennial with sword-like, aromatic leaves that smell of sweet vanilla when crushed. It spreads by rhizomes in shallow water and has been used medicinally and for fragrance for centuries.
| Family: | Araceae (a-RAY-see-ee) |
| Genus: | Acorus (AK-or-us) |
| Species: | calamus (KAL-uh-mus) |
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