KNP Rare Plants Database


 
KY Office of Kentucky Nature Preserves




Hair Grass
Muhlenbergia glabrifloris
Family: Poaceae

Protection Status:
State Status:  S
USFWS Status: 

Global Rank: G4?
State Rank: S2S3

   

Photo by Edward W. Chester @ TENN
Habitat:
Muhlenbergia glabrifloris tends to occur in areas of repeated disturbance. It occurs in two very different habitat types: on dry or baked soils, prairies, gravels, and rocky slopes, generally at the edges of forests; or in wet, bottomland woods and at marsh edges.

Species Description:
Perennial grass.

Phenology:
Flowering Period: Early August to late October.

Additional Information at NatureServe

Diagnostic Characteristics:
Muhlenbergia glabrifloris has longish scaley rhozomes. The lemmas do not have a tuft of hair at the base as is typical other muhly grasses. The infloresence is contracted and dense. The internodes are slightly puberulent toward the top.

Management:
Timber removal may be beneficial and even needed to maintain the open character of the habitat for this species. Hand removal of trees in the vicinity of the population is necessary to avoid impacts from timber operations. Disturbance such as ATV trails, timber removal or any activity that results in increased erosion and weed invasion will be detrimental.

Global Range:
Muhlenbergia glabrifloris occurs from southwestern Indiana and Illinois to eastern Texas. This species also occurs in Maryland and is historical in Virginia and North Carolina.

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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