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Sphenosciadium capitellatum

Sphenosciadium capitellatum A. Gray

Woollyhead Parsnip

Apiaceae (Carrot Family)


USDA Symbol: SPCA5

USDA Native Status: L48 (N)

A stout tall plant with numerous tiny white flowers in compact, separate, white buttons at ends of hairy branches.

The genus name comes from the Greek sphen (wedge) and skias (umbrella), probably referring to the shape of the flower cluster.


From the Image Gallery

No images of this plant

Plant Characteristics

Duration: Perennial
Habit: Herb

Bloom Information

Bloom Time: Jul , Aug


USA: CA , ID , NV , OR
Native Distribution: Eastern Oregon and central Idaho south to southern California mountains.
Native Habitat: Wet meadows, swamps, and streambanks from foothills to moderate elevations.

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.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Santa Barbara Botanic Garden - Santa Barbara, CA

Additional resources

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


Record Modified: 2007-01-01
Research By: TWC Staff

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