Barcelo's spotted hemlock (Conium maculatum var. barceloi)

Barcelo's poison hemlock Balearic poison hemlock
Silhouette: T. Michael Keesey / License

Conium maculatum var. barceloi - Poison Hemlock Variety

Growing natively within the rocky soils of the Balearic Islands, Conium maculatum var. barceloi exhibits the classic poisonous properties of its parent species. This biennial herb produces distinct purple-spotted stems and finely divided foliage during its growth cycle. Local wildlife avoids the plant due to its pungent, unpleasant odor when bruised.

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 maculatum (Poison Hemlock)
  • variety Conium maculatum var. barceloi (Barcelo's spotted hemlock)

Living Pulse

Morphology

This variety displays a structure closely resembling the typical species but with minor localized adaptations. Stems are hollow, erect, and marked with distinctive purple spots near the base. The leaves are bi- or tri-pinnate, resembling parsley, and release a mousy smell when crushed.

Its inflorescence consists of numerous small, white flowers grouped in flat-topped compound umbels. The root system features a stout, fleshy taproot that anchors the plant firmly in rocky or sandy substrates.

Flowering season

Late spring to mid-summer

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Dec

Applications

Due to its extreme toxicity, this plant has no modern agricultural or horticultural applications. Historically, extracts from related hemlock varieties served as state-authorized poisons in ancient Greece. Toxicological research remains the primary focus of interest for this specific variety today.

Interesting facts

  • The variety name honors the notable Spanish botanist Francisco Barceló y Combis, who documented Balearic flora.
  • It contains active neurotoxins like coniine, which cause ascending muscular paralysis.
  • Ingesting even small amounts of any plant part can result in fatal respiratory failure.

Geography of distribution

  • Spain

Technical Information

External Databases: GBIF, POWO, Tropicos

See also

True Araucarias

True Araucarias

Araucaria sect. Araucaria

Araucaria sect. Araucaria is a botanical section of evergreen conifers native to South America. It …