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Flaigg, Norman G.
Cicuta maculata L.
Spotted water hemlock, Water-Hemlock, Beaver Poison
USDA Symbol: CIMA2
USDA Native Status: Native to U.S.
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.
Plant CharacteristicsDuration: Biennial Habit: Herb Flower:
Bloom InformationBloom Color: White
Bloom Time: Jun , Jul , Aug , Sep
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
, 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. USDA Native Status: L48(N), AK(N), CAN(N)
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
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Record Modified: 2010-08-30
Research By: TWC Staff