All flowers
Common Toadflax Wikimedia Commons
Plantaginaceae

Common Toadflax

Linaria vulgaris

Presumption and persistence.

Family
Plantaginaceae
Genus
Linaria
Native to
Europe, Central Asia
Bloom season
Summer, Fall
Type
perennial herb
Height
1-2.5 ft
Sunlight
full sun
Soil
dry, sandy, well-drained
Water
low
Hardiness
3-9
Lifespan
perennial

Did you know

  • Common toadflax flowers have a deep spur containing nectar accessible only to bumblebees — they force open the closed mouth of the flower with their weight, a mechanism called buzz pollination.
  • Carl Linnaeus was fascinated by a mutant toadflax he found with radially symmetric (peloric) flowers instead of the normal bilaterally symmetric ones — this became an early example cited in debates about the mutability of species.
  • The flowers closely resemble tiny snapdragons (they are close relatives), which earned toadflax the folk name 'butter and eggs' in North America where it naturalized after colonial introduction.
  • Toadflax has naturalized across all temperate continents and is considered invasive in parts of North America and Australia, colonizing roadsides, railways, and disturbed land with tenacious rhizomatous roots.
  • A yellow dye was extracted from the flowers by wool dyers in northern Europe; it has also been investigated for compounds with antibacterial activity.

Color meanings

0

presumption

1

persistence

2

adaptability

Uses

  • ornamental
  • historical dye
  • pollinator plant