Etymology: Conium: derived from ancient Greek name coneion for hemlock
Plants: erect, biennial, up to 8' tall forb; stems green with purple spots, freely branched, and hollow; all parts deadly poisonous
Leaves: not clasping the stem, 8"-16" broadly-triangular to ovate in outline, 3-4 times pinnately-divided, toothed
Flowers: white, 5-parted; inflorescence of many 2"-3 1/2" mostly terminal umbels often with 2-4 together from the top stem node, with age the side umbels overtop the central one; blooms June-Aug.
Fruits: dry, splitting into 2 seeds, - fruit:
seed:
Habitat: disturbed sites
Hazardous: Careful, this plant is hazardous!
Invasiveness: Prohibited/Restricted Invasive - Eradicate!
Conservation Status: Introduced - adventive; potentially invasive
Plants: erect, biennial, up to 8' tall forb; stems green with purple spots, freely branched, and hollow; all parts deadly poisonous
Leaves: not clasping the stem, 8"-16" broadly-triangular to ovate in outline, 3-4 times pinnately-divided, toothed
Flowers: white, 5-parted; inflorescence of many 2"-3 1/2" mostly terminal umbels often with 2-4 together from the top stem node, with age the side umbels overtop the central one; blooms June-Aug.
Fruits: dry, splitting into 2 seeds, - fruit:
seed:Habitat: disturbed sites
Hazardous: Careful, this plant is hazardous!
Invasiveness: Prohibited/Restricted Invasive - Eradicate!
Conservation Status: Introduced - adventive; potentially invasive
Floristic Rating: Wetland Indicator = FACW WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin invasive species including decription, habitats, control methods Invasive And Exotic Species of North America: Descriptions, management issues, warnings, photos, etc. USDA Plants Database: Federal Distribution and detailed information including photos USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. David G. Smith's "Delaware Wilflowers": Beautiful photographs; descriptions Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"
Emmet J. Judziewicz
Merel R. Black
Botanical Illustration
Emmet J. Judziewicz
Botanical Illustration
Botanical Illustration
Flora.cyberia
from USDA Plants Website
Kurt Stüber
Emmet J. Judziewicz
