Cicuta maculata L.
Spotted water hemlock, Water-Hemlock, Beaver Poison
Apiaceae (Carrot Family)
USDA Symbol: CIMA2
Smooth, erect, highly branched plant bearing dome- shaped, loose clusters of small white flowers. The sturdy stem is magenta-streaked.
The plant is not related to true Hemlock (Tsuga spp.), but to Poison Hemlock (Conium maculatum), the plant used to poison Socrates.
From the Image Gallery
Bloom InformationBloom Color: White
Bloom Time: Jun , Jul , Aug , Sep
DistributionUSA: AK , AL , AR , AZ , CA , CO , CT , DC , DE , FL , GA , IA , ID , IL , IN , KS , KY , LA , MA , MD , ME , MI , MN , MO , MS , MT , NC , ND , NE , NH , NJ , NM , NV , NY , OH , OK , OR , PA , RI , SC , SD , TN , TX , UT , VA , VT , WA , WI , WV , WY
Canada: NB , NS , ON , PE
Native Distribution: Southern Ontario to Nova Scotia; south through New England to Florida; west to Texas; north through Missouri to Canada.
Native Habitat: Wet meadows, thickets, freshwater swamps.
Growing ConditionsSoil Moisture: Wet
BenefitWarning: POISONOUS PARTS: All parts; roots may be mistaken for wild parsnip or artichoke. Highly Toxic! May be Fatal if Eaten! Symptoms include muscle spasms, dilated pupils, dizziness, diarrhea, stomach pain, convulsions. Toxic Principle: Cicutoxin and cicutol. (Poisonous Plants of N.C.)
Conspicuous Flowers: yes
Value to Beneficial InsectsSupports Conservation Biological Control
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Pineywoods Native Plant Center - Nacogdoches, TX
Nueces River Authority - Uvalde, TX
BibliographyBibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.
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Additional resourcesUSDA: Find Cicuta maculata in USDA Plants
FNA: Find Cicuta maculata in the Flora of North America (if available)
Google: Search Google for Cicuta maculata
MetadataRecord Modified: 2010-08-30
Research By: TWC Staff