1. a small plant of the buttercup family with a long, slender spike of flowers resembling a mouse's tail
Usage: botanical term; genus Myosurus

Examples

• The mousetail grows in moist meadows and along stream banks.
• Botanists identified the mousetail by its distinctive elongated flower spike.
• The tiny mousetail plant is often overlooked in wildflower surveys.
• Mousetail flowers are small and greenish, clustered along a thin stem.