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
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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:
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- Tags:
- Cultivars / Varieties:
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- Tags:
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Attributes:
- Genus:
- Conium
- Species:
- maculatum
- Family:
- Apiaceae
- Life Cycle:
- Biennial
- Country Or Region Of Origin:
- Europe, Mediterranean
- Distribution:
- Naturalized in US
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Whole Plant Traits:
- Plant Type:
- Herbaceous Perennial
- Poisonous
- Habit/Form:
- Erect
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Fruit:
- Fruit Description:
- Ovoid to suborbicular compressed laterally and ribbing on the surface.
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Flowers:
- Flower Color:
- Pink
- White
- Flower Inflorescence:
- Umbel
- Flower Value To Gardener:
- Showy
- Flower Description:
- Small, white, in terminal umbrella-like clusters
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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
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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
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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
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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
