KNP Rare Plants Database

KY Office of Kentucky Nature Preserves

Appalachian Rosinweed
Silphium wasiotense
Family: Asteraceae

Protection Status:
State Status:  S
USFWS Status: 

Global Rank: G3?
State Rank: S3?


Photo by KSNPC Staff
Dry-mesic forest, usually somewhat open due to disturbance.

Species Description:
Perennial herb.

Flowering Period: Early July to late September.

Additional Information at NatureServe

Diagnostic Characteristics:
The leaves of Silphium wasiotense are entire, not lobed, pubesecent, and with bases cordate or truncate. They are distributed along the stem and mostly opposite.

Woody plant invasion may need to be controlled using periodic prescribed fire, mowing or other means to maintain the open character of the habitat for this species. Hand removal of trees in the vicinity of the species is necessary. Soil disturbance resulting from activities such as ATV trails, timber removal or any activity that results in increased erosion and weed invasion will be detrimental. Exotic pest plants are a threat to this species and should be removed.

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
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