Butter-and-eggs
Butter-and-eggs, (Linaria vulgaris), perennial herbaceous plant of the Plantaginaceae family, native to Eurasia. The plant is widely naturalized in North America, where it is considered an invasive species.
Butter-and-eggs grows up to 1 metre (3.3 feet) tall, bears narrow flax-like leaves, and produces showy yellow and orange flowers that are two-lipped and spurred like snapdragons. Seeds are borne in a capsule fruit and feature a small notched wing for wind dispersal.
The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Melissa Petruzzello.
Citation Information
Article Title:
Butter-and-eggs
Website Name:
Encyclopaedia Britannica
Publisher:
Encyclopaedia Britannica, Inc.
Date Published:
14 November 2026
Access Date:
November 14, 2026