Linaria vulgaris Mill.
Family: Plantaginaceae
butter-and-eggs
Linaria vulgaris image
Christopher Noll  
Etymology: Linaria: from the Latin linum, "flax," referring to the flax-like leaves of some species
Plants: erect, perennial, 1'-3' tall forb; creeping, clone-forming roots
Leaves: many, linear and narrowing toward the base, pale-green,
Flowers: orange to yellow, 5-parted, 3/4" long, slender spur at the base, 4 stamens; erect upper lip with 2 lobes, lower lip with 3 lobes; inflorescence a compact, spike-like cluster (raceme) of stalked flowers at the top of the stem; blooms May-Sept.
Fruits: roundish capsule with winged seeds
Habitat: disturbed sites; in sandy soil
Hazardous: Careful, this plant is hazardous!
Conservation Status: Introduced - naturalized; potentially invasive