Characteristics
Calamagrostis perplexa Scribn.
Clausen’s reed grass
Dry-mesic forests and openings in forests with thin acidic soils. Sometimes associated with rock outcrops. Under a tree canopy the plants are often vegetative. A very local and rare species endemic or close to endemic in New York but perhaps overlooked because it often occurs as vegetative individuals.
Graminoid
Perennial
Vascular
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The records and reports of C. perplexa from Ulster and Columbia counties, New York (McVaugh 1958, Howard et al. 2009) are referable to C. stricta ssp. inexpansa. These populations appear to be the lacustris variant of C. stricta ssp. inexpansa which has among other characteristics a pubescent leaf collar (Greene 1980). This is in part why these populations were confused with C. perplexa which also has a pubescent leaf collar.
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Native
Endemic
Endangered-State
FAC+, FACW (NWPL)
FACW (NWPL NCNE)
S1 (State Rank)
G1Q (Global Rank)
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Classification
Citation
Calamagrostis perplexa Scribn.
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Species Distribution Map
This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display its name.