KNP Rare Plants Database


 
KY Office of Kentucky Nature Preserves




Porter's Reedgrass
Calamagrostis porteri ssp. porteri
Family: Poaceae

Protection Status:
State Status:  T
USFWS Status: 

Global Rank: G4T4
State Rank: S2S3

   

Photo by University of Tennessee Herbarium (TENN)
Habitat:
Dry rocky woods on mountain summits.

Species Description:
Perennial, rarely produces flowers.

Phenology:
Flowering Period: Early July to late September.

Additional Information at NatureServe

Diagnostic Characteristics:
Culms are slender with a loosely ascending dense infloresence. The leaf sheaths are glabrous except at the collar (where the blade forms) which is densely hairy. The most distinguishing character for this taxa is the awned lemna with a tuft of long hairs at the base. The rachilla (the stalk of the spikelet) bristle-like and extending behing the palea.

Management:
May tolerate some timber removal if done without excessive soil disturbance (discing/chopping) and if immediate vicinity of plant is protected from debris and direct cutting etc. Disturbance of surrounding slopes such as ATV trails or timber removal or any activity that results in increased erosion will be detrimental. Exotic pest plants are a threat to this species.

Global Range:


Known Kentucky Occurrences:
Species occurrence map

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Data Last Updated: November 2018
Office of Kentucky Nature Preserves
300 Sower Blvd
Frankfort,KY 40601
Phone: (502) 573-2886
Email:
naturepreserves@ky.gov
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