Definition

Noun: 1. A genus of poisonous plants: Aconitum refers to a genus of flowering plants in the buttercup family (Ranunculaceae), commonly known as monkshood, wolfsbane, or aconite. These plants are native to temperate regions of the Northern Hemisphere and are characterized by their distinctive hood-shaped flowers and highly toxic properties.

Usage

• The word "aconitum" is used in botanical, horticultural, and toxicological contexts. It functions as a singular noun when referring to the genus as a whole.
• Example:

Examples

• Scientific/Botanical Context:
  • The alkaloids found in aconitum have been used historically in poison arrows.
  • Botanists study the phylogenetic relationships within the genus Aconitum.
• General/Horticultural Context:
  • Gardeners should wear gloves when handling aconitum due to its toxicity.
  • That tall, blue-flowered plant at the back of the border is a type of aconitum.

Advanced Usage

• "Aconitum napellus": This is the scientific name for the common monkshood, often considered the type species for the genus.
  • Example: The roots of Aconitum napellus were once used in medicine, albeit with great risk.

Variants and Related Words

• Aconite (n): A common name for plants of the genus Aconitum; also refers to the drug derived from these plants.
  • Example: Aconite was a known poison in ancient times.
• Monkshood (n): A common name for Aconitum plants, derived from the hood-like shape of the upper sepal.
• Wolfsbane (n): Another common name for Aconitum, reflecting its historical use as a poison for wolves.

Synonyms

• Monkshood (common name)
• Wolfsbane (common name)
• Aconite (common name and derived substance)

Notes on Meaning

The definition provided in the reference context ("with a vaulted and enlarged petal") describes a key morphological feature. The "vaulted and enlarged petal" is technically a sepal (specifically the upper sepal) that forms the characteristic "hood" or "helmet" shape, which is the most recognizable trait of flowers in this genus.

Noun

1. genus of poisonous plants of temperate regions of northern hemisphere with a vaulted and enlarged petal