Calamagrostis

noun
Cal·​a·​ma·​gros·​tis | \ ˌkaləməˈgrästə̇s\

Definition of Calamagrostis

: a genus of tall mostly perennial grasses having single-flowered spikelets, the lemmas entire, and the rachillae usually extending beyond the palea into a hairy bristle or stalk — see bluejoint sense 1

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History and Etymology for Calamagrostis

New Latin, from calam- + Latin agrostis couch grass, from Greek agrōstis dog's-tooth grass, perhaps from agros field

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