New Records and a Taxonomic Review of Calamagrostis perplexa (Poaceae: Poeae: Agrostidinae), a New York State Endemic Grass

Calamagrostis perplexa is a New York State endemic grass species, hypothesized to be of hybrid origin, that previously was known only from a single locality. We provide a summary of its taxonomic history, report new New York records and ecological information for the taxon, and include a principal c...

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Bibliographic Details
Published in:Rhodora 2009-04, Vol.111 (946), p.155-170
Main Authors: Howard, Timothy G, Saarela, Jeffery M, Paszko, Beata, Peterson, Paul M, Werier, David
Format: Article
Language:English
Subjects:
Awns
Calamagrostis
Callus
endemic
Glumes
grass
hybrid
Hybridity
Lakes
Mountain peaks
National parks
New York
Poaceae
Principal components analysis
principal components analysis (PCA)
Research s
Ridges
Taxa
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Description
Summary:Calamagrostis perplexa is a New York State endemic grass species, hypothesized to be of hybrid origin, that previously was known only from a single locality. We provide a summary of its taxonomic history, report new New York records and ecological information for the taxon, and include a principal components analysis and key characterizing morphological variation in C. perplexa and its putative close relatives C. canadensis, C. porteri, C. rubescens, and C. scribneri. Calamagrostis perplexa is now known from two extant populations and a third population of unknown status; it remains a New York state endemic.
ISSN:0035-4902
1938-3401
DOI:10.3119/08-5.1