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:
Hardwood forests on mountain summits, thickets, rocky slopes, roadbanks, stream margins and meadows.
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Species Description:
Perennial herb.
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Phenology:
Flowering Period: Early August to late September.
Fruiting Period: Early September to late October.
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Additional Information at NatureServe
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Diagnostic Characteristics:
Flowers in umbels up to 20 cm wide; petals white. Fruit are strongly flattened and winged. Leaf sheaths greatly expanded over 1 cm. Plants generally from a single stem and with long-petioled decompound basal leaves and progressively reduced upward, the uppermost almost bladeless. Leaves with distinct flattened blades (rather than highly dissected segments) and ternately divided (three main branches arising from top of leaf sheath). leaflets have a rough ciliate margin.
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Management:
Disturbance of surrounding slopes such as ATV trails or timber removal or any activity that results in increased erosion will be detrimental. Exotic pest plants are a threat to this species.
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Global Range:
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Known Kentucky Occurrences:
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