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Osmorhiza claytonii (Clayton's sweetroot)
Bloodworth, Stefan

Osmorhiza claytonii

Osmorhiza claytonii (Michx.) C.B. Clarke

Clayton's Sweetroot, Hairy Sweet-cicely, Sweet Jarvil

Apiaceae (Carrot Family)

Synonym(s): Osmorhiza aristata var. brevistylis, Washingtonia claytonii


USDA Native Status: L48 (N), CAN (N)

A hairy plant with small sparse compound umbels of white flowers. The 1-3 ft. stems are usually solitary and covered with long, soft hairs. Leaves are divided into threes, two or three times. Open clusters (compound umbel) of small, white flowers rise above the foliage on stalks from upper leaf axils.

The roots of this plant have an anise-like odor when bruised. Several species of this genus occur in the East, among them Anise Root (O. longistylis), which has styles to 1/4 inch (4 mm) long.


From the Image Gallery

11 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit Type: Schizocarp
Size Notes: Up to about 3 feet tall.
Fruit: Black

Bloom Information

Bloom Color: White
Bloom Time: May , Jun


USA: AL , AR , CT , DC , DE , GA , IA , IL , IN , KS , KY , MA , MD , ME , MI , MN , MO , NC , ND , NE , NH , NJ , NY , OH , PA , RI , SC , SD , TN , VA , VT , WI , WV
Canada: MB , NB , NS , ON , PE , QC
Native Distribution: Que., s. to GA mts., n.w. AR & e. KS (more abundant northward)
Native Habitat: Rich woods; wooded slopes.

Growing Conditions

Light Requirement: Shade
Soil Moisture: Moist
Soil Description: Moist, rich soils.


Description: Sweet cicely is not easy, but not impossible, to start from seeds.
Commercially Avail: yes

Find Seed or Plants

View propagation protocol from Native Plants Network.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Web Reference

Webref 26 - Minnesota Wildflowers: a field guide to the flora of Minnesota (2009)
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Osmorhiza claytonii in USDA Plants
FNA: Find Osmorhiza claytonii in the Flora of North America (if available)
Google: Search Google for Osmorhiza claytonii


Record Modified: 2023-02-21
Research By: TWC Staff

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