Native & Naturalized Plants of the Carolinas & Georgia


2837

Forb
Biennial

Non-native: Eurasia
Documented growing wild in GA NC SC

Uncommon (rare in GA)

Look for it in ditches, roadsides, streambanks, disturbed areas, per Weakley's Flora

map
To see a detailed map, click here


Invasive?

This plant may be causing problems in natural areas outside its native range, according to authorities such as:

Kentucky Exotic Pest Plant Council, 2013
Tennessee Exotic Pest Plant Council, 2009

 

full sun ...Moist ...Variable

LEAVES:
Pinnately decompound
Alternate

FLOWER:
Spring/Summer
White
Radially symmetrical
5-merous
Inferior ovary
Flowers in compound umbels

FRUIT:
Summer
Schizocarp of two mericarps

 

TO LEARN MORE about this plant, look it up in a good book!



Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Apiales

WEAKLEY'S FLORA (11/30/12):
Conium maculatum   FAMILY Apiaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Conium maculatum   FAMILY Apiaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 140-24-001:
Conium maculatum   FAMILY Apiaceae

 

COMMON NAME:
Poison Hemlock


Click or hover over the thumbnails to see larger pictures.

image of Conium maculatum

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_coma2_001_lvd

        

image of Conium maculatum

JK Marlow    jkm090405_092

April    Walker County    GA

image of Conium maculatum

JK Marlow    jkm090405_094b

April    Walker County    GA

Stems hollow, spotted, per Vascular Flora of the Carolinas.

image of Conium maculatum

JK Marlow    jkm090524_012

May    Pickens County    SC

Roadside ditch

Leaves broadly triangular, 3-4x pinnately compound, can be over 12" long, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Conium maculatum

JK Marlow    jkm090524_014

May    Pickens County    SC

Roadside ditch

image of Conium maculatum

JK Marlow    jkm090524_017

May    Pickens County    SC

Roadside ditch

image of Conium maculatum

JK Marlow    jkm090524_037

May    Pickens County    SC

Roadside ditch

A coarse, taprooted biennial to 9' tall, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Conium maculatum

JK Marlow    jkm090524_042

May    Pickens County    SC

Roadside ditch

image of Conium maculatum

JK Marlow    jkm090524_057

May    Pickens County    SC

Roadside ditch

image of Conium maculatum

JK Marlow    jkm090524_059

May    Pickens County    SC

Roadside ditch

image of Conium maculatum

JK Marlow    jkm090524_063

May    Pickens County    SC

Roadside ditch

Tiny white flowers in umbels 1.5-2.5" wide, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Conium maculatum

Richard and Teresa Ware    rtw_conium_maculatum_19

May        

image of Conium maculatum

Ron Lance    rwl_conium_maculatum

June    Jackson County    NC

Big Ridge Preserve

image of Conium maculatum

Steve Dewey, Utah State University, Bugwood.org    bug_1459207

Month Unknown        

image of Conium maculatum

Joseph M. DiTomaso, University of California - Davis, Bugwood.org    bug_5374190

Month Unknown        

image of Conium maculatum

Joseph M. DiTomaso, University of California - Davis, Bugwood.org    bug_5374191

Month Unknown        

image of Conium maculatum

John M. Randall, The Nature Conservancy, Bugwood.org     bug_5392073

Month Unknown        

image of Conium maculatum

Bruce Ackley, The Ohio State University, Bugwood.org    bug_5438055

Month Unknown        

image of Conium maculatum

D. Walters and C. Southwick, Table Grape Weed Disseminule ID, USDA APHIS ITP, B    bug_5458174

Month Unknown