Kentucky Nature Preserves Rare Plants

Kentucky State Nature Preserves Commission

Rough Rattlesnake-root
Prenanthes aspera
Family: Asteraceae

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

Global Rank: G4?
State Rank: S1

Dry prairies and barrens, limestone glades, dry, open rocky woods. usually in acid soils.

Species Description:
Perennial herb.

Flowering Period: Early August to late September.

Additional Information at NatureServe

Diagnostic Characteristics:
P. aspera is distinguished by having stems and lower leaves rough-hairy. The flowers are cream colored. The heads are loosely ascending or suberect (rarely nodding) and pubescent (with long coarse hairs). The inflorescence is corymbiform or paniculiform.

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. Exotic pest plants are a threat to this species and should be removed. Avoid creating access to the site through trail or road construction.

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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