Definition

Noun: 1. A European annual wild lettuce with prickly stems: This term refers to a specific species of prickly, wild lettuce native to Europe. It is characterized by its annual life cycle and stems covered in spines or prickles. 2. A troublesome weed in parts of the United States: In some regions of the U.S., this plant has been introduced and is considered an invasive or problematic weed.

Usage Examples

• Noun:
  • The field was overrun with horse thistle, its prickly stems making it difficult to walk through.
  • Farmers in the state are trying to control the spread of horse thistle, which competes with crops for resources.

Advanced Usage

• As a botanical specimen: The term is used in botanical and agricultural contexts to identify and discuss this specific plant species (, commonly called prickly lettuce).
  • The guide pointed out the horse thistle among other native and invasive species.

Variants and Related Words

• Prickly lettuce: A common name for the same plant species ().
• Compass plant: Another name for this species, referring to how its leaves often orient themselves north-south.
• Wild lettuce: A broader category that includes horse thistle and other non-cultivated lettuce species.

Synonyms

• Prickly lettuce
• (scientific name)

Notes on Meaning

This is a specific common name for a single plant species. It is not a general term for all large thistles. The "horse" in the name often denotes something large, coarse, or wild, rather than being directly related to the animal.

Noun

1. European annual wild lettuce having prickly stems; a troublesome weed in parts of United States