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Conium maculatum is often confused with:
Angelica archangelica Leaves
Daucus carota Daucus carota
Heracleum maximum Form in native habitat
Petroselinum crispum Petroselinum crispum
Pimpinella anisum Form
Plants that fill a similar niche:
Hydrangea serrata 'Omacha Variegata' Hydrangea Serrata 'Omacha Variegated'
Hydrangea serrata Hydrangea serrata
Hydrangea macrophylla 'Glowing Embers' Hydrangea macrophylla 'Glowing Embers'

Winter Fern Conium maculatum

Other Common Name(s):

Phonetic Spelling
KOH-nee-um mak-yoo-LAY-tum
This plant has high severity poison characteristics.
See below
Description

An erect biennial her with a fleshy taproot and showy white flowers.  The leaves of Conium maculatum resemble parlsey's leaves (Petroselinum crispum); however, Conium maculatum are extremely poisonous.

 

 

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#showy flowers#poisonous#white flowers#pink flowers#fine texture#lacy leaves#victorian garden#problem for cats#problem for dogs#problem for horses#woodland garden
 
Conium Maculatum
Conium Maculatum Matt Lavin CC-BY-SA 2.0
Conium Maculatum
Conium Maculatum Matt Lavin CC-BY-SA 2.0
Conium maculatum
Conium Maculatum Eric Coombs CC BY 3.0
Conium Maculatum
Conium Maculatum Matt Lavin CC-BY-SA 2.0
Conium Maculatum
Conium Maculatum Mick Talbots CC BY 2.0
Conium Maculatum
Conium Maculatum Stefan.lefnaer CC BY-SA 4.0
Conium Maculatum
Conium Maculatum Tiia Monto CC BY-SA 3.0
Conium Maculatum
Conium Maculatum Аимаина хикари CC BY-SA 3.0
Conium maculatum stem
Conium maculatum stem Thayne Tuason CC BY-SA 4.0
Cultivars / Varieties:
Tags:
#showy flowers#poisonous#white flowers#pink flowers#fine texture#lacy leaves#victorian garden#problem for cats#problem for dogs#problem for horses#woodland garden
  • Attributes:
    Genus:
    Conium
    Species:
    maculatum
    Family:
    Apiaceae
    Life Cycle:
    Biennial
    Country Or Region Of Origin:
    Europe, Mediterranean
    Distribution:
    Naturalized in US
  • Whole Plant Traits:
    Plant Type:
    Herbaceous Perennial
    Poisonous
    Habit/Form:
    Erect
  • Fruit:
    Fruit Description:
    Ovoid to suborbicular compressed laterally and ribbing on the surface.
  • Flowers:
    Flower Color:
    Pink
    White
    Flower Inflorescence:
    Umbel
    Flower Value To Gardener:
    Showy
    Flower Description:
    Small, white, in terminal umbrella-like clusters
  • Leaves:
    Leaf Color:
    Green
    Leaf Type:
    Compound (Pinnately , Bipinnately, Palmately)
    Leaf Shape:
    Deltoid
    Ovate
    Hairs Present:
    No
    Leaf Description:
    Large, 3-4 pinnately divided, the leaflets broadly ovate to deltate very
  • Stem:
    Stem Color:
    Brown/Copper
    Green
    Purple/Lavender
    Red/Burgundy
    Stem Is Aromatic:
    No
    Stem Buds:
    Smooth/Hairless
    Stem Surface:
    Smooth (glabrous)
    Stem Description:
    Smooth, purple, brown, or red spots and fine regular lines, hollow stem; taproot solid and parsnip-like
  • Landscape:
    Landscape Location:
    Naturalized Area
    Pond
    Slope/Bank
    Woodland
    Landscape Theme:
    Water Garden
    Problems:
    Poisonous to Humans
    Problem for Cats
    Problem for Dogs
    Problem for Horses
    Weedy
  • Poisonous to Humans:
    Poison Severity:
    High
    Poison Symptoms:
    HIGHLY TOXIC, MAY BE FATAL IF EATEN! Delivery by ingestion. Salivation, vomiting, diarrhea, muscular weakness, paralysis, nervousness, trembling, dilation of pupils, weak pulse, convulsions, coma.
    Poison Toxic Principle:
    Alkaloids coniine and others
    Causes Contact Dermatitis:
    No
    Poison Part:
    Bark
    Flowers
    Fruits
    Leaves
    Roots
    Sap/Juice
    Seeds
    Stems