P h o t o b y B . E u g e n e W o f f o r d @ T E N N
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Habitat:
Dry mesic forests with limestone outcropping.
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Species Description:
Perennial herb.
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Phenology:
Flowering Period: Early May to late July.
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Additional Information at NatureServe
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Diagnostic Characteristics:
This species of Thaspium has highly divided leaf so that the leaflets are linear to oblong, the ultimate segments are less than 2 cm wide. The fruit are pubescent and 3-4 mm long. Thaspiums are distinguished from Zizia, which they resemble, in having all flowers stalked, winged fruits and twice-pinnate or tenate pinnate leaves. Also the flowers are yellow but not bright yellow as is typical of Zizia.
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Management:
Exotic pest plants are a threat to this species and should be removed. Avoid creating access to the site through trail or road construction.
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Global Range:
Kentucky south to Alabama and Georgia and also in western North Carolina (Kartesz 1999, Weakley 2000).
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Known Kentucky Occurrences:
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