KNP Rare Plants Database


 
KY Office of Kentucky Nature Preserves




Purple Oat
Schizachne purpurascens
Family: Poaceae

Protection Status:
State Status:  T
USFWS Status: 

Global Rank: G5
State Rank: S2

   


Habitat:
Dry outcrops along limestone clifflines along large streams and rivers.

Species Description:
Perennial grass.

Phenology:
Flowering Period: Early May to late July.

Additional Information at NatureServe

Diagnostic Characteristics:
Schizachne is distinctive in having a densely bearded callus (the thickened area at the base of the lemma). The glumes are purple at the base (about 1/22 to 2/3 the length of the lemmas). The lemmas are narrow and have 5-7 veins and are bifid (appear notched) with an awn extending between these two teeth. This is a perennial grass with flat leaves and the infloresence is a panicle with a few drooping branches of spikelets. The dry rocky habitat is also distinctive.

Management:
Timber removal would be detrimental. Disturbance such as ATV trails, timber removal or any activity that results in increased erosion and weed invasion will be detrimental.

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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