Kentucky Nature Preserves Rare Plants

Kentucky State Nature Preserves Commission

Purple Oat
Schizachne purpurascens
Family: Poaceae

Protection Status:
State Status:  T
USFWS Status: {null}

Global Rank: G5
State Rank: S2

Dry outcrops along limestone clifflines along large streams and rivers.

Species Description:
Perennial grass.

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 1/2 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 inflorescence is a panicle with a few drooping branches of spikelets. The dry rocky habitat is also distinctive.

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:

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Data last updated: Wednesday, May 28, 2014
Kentucky State Nature Preserves Commission
801 Teton Trail
Frankfort,KY 40601
Phone: (502) 573-2886
Fax: (502) 573-2355
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