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Sium suave Walt.
Hemlock waterparsnip, Water Parsnip
USDA Symbol: sisu2
USDA Native Status: Native to U.S.
Fragrant, sometimes aquatic plant with flat clusters of tiny dull-white flowers and strongly ridged stems.
The roots of this plant can be boiled and eaten as a cooked vegetable, but because of the plants resemblance to the deadly Water Hemlock (Cicuta maculata), they are best left alone.
Plant CharacteristicsDuration: Perennial Habit: Herb Flower:
Bloom InformationBloom Color: White
Bloom Time: 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 , NV , NY , OH , OR , PA , RI , SC , SD , TN , TX , UT , VA , VT , WA , WI , WV , WY Canada: NB
, PE Native Distribution:
Throughout East, except Arctic; also in much of West. Native Habitat:
Wet meadows and thickets, muddy shores. USDA Native Status: L48(N), AK(N), CAN(N)
Growing ConditionsSoil Moisture: Moist , Wet
BenefitUse Other: Some tribes believed that smoke from common water-parsnip seeds could drive away evil spirits trying to steal a hunters luck. (Kershaw)
Water-parsnip is so similar to its highly poisonous relatives (such spotted water-hemlock), it is better left alone. (Kershaw)
Conspicuous Flowers: yes
Fragrant Flowers: yes
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Record Modified: 2012-06-20
Research By: TWC Staff