Monnier's snowparsley (Conium monieri)

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Conium monieri - Botanical Overview and Information

Temperate European grasslands host Conium monieri, a toxic biennial herb in the Apiaceae family.

This species mirrors the morphology of other toxic hemlocks, developing hollow stems and compound leaves. It occurs in wild, moist habitats across the continent.

Taxonomy

  • ∟ царство Plantae
  • ∟ division Tracheophytes (Vascular Plants)
  • ∟ subdivision Spermatophytes (Seed plants)
  • ∟ Angiosperms
  • ∟ mesangiosperms (Core angiosperms)
  • ∟ eudicots
  • ∟ asterids
  • ∟ order Apiales
  • ∟ family Apiaceae
  • ∟ genus Conium (Hemlock)
  • ∟ species Conium monieri (Monnier's snowparsley)

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Morphology

The vegetative structure of this plant features highly divided, bipinnate or tripinnate leaves with a serrated margin. Its erect, hollow stems often display the characteristic purplish mottling or spotting that signals its dangerous nature.

Its inflorescence is a compound umbel comprising numerous small, five-petaled white flowers. The fruits are small, dry schizocarps with prominent wavy ribs, which assist in wind and water dispersal.

Flowering season

June to August

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Applications

Due to its high concentration of toxic alkaloids, this species lacks any safe domestic, culinary, or medicinal applications. It serves primarily as a subject of taxonomic interest and toxicological study.

In agricultural settings, it is treated as a noxious weed that presents a severe hazard to grazing livestock.

Interesting facts

Like its close relatives, this herb contains potent piperidine alkaloids that act on the central nervous system.

  • The genus name comes from the Greek word for vertigo, referencing the primary symptom of poisoning.
  • Accidental ingestions usually happen when foragers mistake its foliage for wild chervil or parsley.

Geography of distribution

  • Czech Republic
  • Slovakia
  • France
  • Germany

Sources

  • Plants of the World Online (POWO), Royal Botanic Gardens, Kew
  • Global Biodiversity Information Facility (GBIF)
  • World Flora Online (WFO)

Technical Information

External Databases: GBIF, Tropicos

See also

Poison Hemlock

Poison Hemlock

Conium maculatum

Conium maculatum, commonly known as poison hemlock, is a highly toxic biennial herbaceous flowering plant …

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