Common Toadflax Linaria vulgaris
Other Common Name(s):
Previously known as:
- Linaria linaria
- Phonetic Spelling
- lin-AR-ee-uh vul-GAIR-iss
- This plant is an invasive species in North Carolina
- Description
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Butter and Eggs is a flowering perennial plant in the plantain family that is native to Eurasia. It has naturalized in North America and can be found in the Piedmont and mountain areas of North Carolina. Mid-summer to mid-fall the yellow and orange snapdragon-like blooms appear in dense clusters at the top of stems. Some colonies of plants bloom later than others. Many plants in a colony may fail to bloom. The leaves are thread-like and blue or gray-green. Each leaf tapers to a petiole, or stalk-like, base and is attached directly, or sessile. Bees are attracted to the flowers. The common name butter-and-eggs comes from the yellow and cream colors of the flower.
Butter and Eggs prefers full sun, good drainage, dry conditions, and gravelly or sandy soil. Under these conditions, this plant can spread aggressively because of the reduced competition from taller plants with wider leaves. It will tolerate soil with a high pH.
The root system consists of a long taproot and shallow rhizomes that spread in all directions. This plant usually forms clonal colonies by means of its rhizomes and has become invasive in several western states. Roots can extend out 10 feet from the mother plant giving rise to daughter plants along the way. This plant tends to show up in disturbed areas as along roads, railways or after fires as well as in fields, pastures or forest edges. It is difficult to eradicate and is not recommended for home landscapes.
The plant is often used as a source for cut flowers. Similar to Snapdragons, Butter and Eggs is often grown in children's gardens for the flowers which can be made to snap by squeezing them at the base of the corolla.
Diseases, Insect Pests, and Other Plant Problems:
Susceptible to aphids and powdery mildew.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Tags:
- Cultivars / Varieties:
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- Tags:
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Attributes:
- Genus:
- Linaria
- Species:
- vulgaris
- Family:
- Plantaginaceae
- Uses (Ethnobotany):
- Used as a yellow dye for centuries in Germany.
- Life Cycle:
- Perennial
- Recommended Propagation Strategy:
- Root Cutting
- Seed
- Country Or Region Of Origin:
- Europe, Siberia, Central Asia
- Distribution:
- Introduced to the United States from Alaska to Texas, Canada, South Africa, southern South America.
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Whole Plant Traits:
- Plant Type:
- Perennial
- Wildflower
- Woody Plant Leaf Characteristics:
- Deciduous
- Habit/Form:
- Erect
- Prostrate
- Spreading
- Growth Rate:
- Rapid
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Soil Texture:
- Loam (Silt)
- Sand
- Shallow Rocky
- Soil pH:
- Alkaline (>8.0)
- Soil Drainage:
- Good Drainage
- Occasionally Dry
- NC Region:
- Mountains
- Piedmont
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Fruit:
- Fruit Color:
- Brown/Copper
- Display/Harvest Time:
- Fall
- Fruit Type:
- Capsule
- Fruit Description:
- Each flower is replaced by a seed capsule that contains numerous small seeds. Each seed is brown and flattened, surrounded by a large papery wing with a small notch on one side. Assisted by their papery wings, these seeds are blown about by the wind.
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Flowers:
- Flower Color:
- Gold/Yellow
- Orange
- Flower Inflorescence:
- Raceme
- Flower Value To Gardener:
- Good Cut
- Showy
- Flower Bloom Time:
- Fall
- Summer
- Flower Shape:
- Cup
- Lipped
- Flower Petals:
- 4-5 petals/rays
- Flower Size:
- 1-3 inches
- Flower Description:
- One inch yellow flowers with an orange throat blossom on a long, crowded, spike-like raceme. Flowers have a thin drooping spur at the base and a slight medicinal odor. The upper lip is two-lobed. Each flower consists of a tubular corolla with an upper and lower lip that is pale yellow and a long nectar spur at the end of the corolla that hangs downward. At the base of the flower, there is a small green calyx with 5 teeth and a short pedicel. Usually the underside of the corolla is cream-colored, in contrast to the bright orange-yellow of the palate.
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Leaves:
- Woody Plant Leaf Characteristics:
- Deciduous
- Leaf Color:
- Gray/Silver
- Green
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Whorled
- Leaf Shape:
- Linear
- Leaf Margin:
- Entire
- Hairs Present:
- No
- Leaf Length:
- 1-3 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- One to two and a half inch, slender, gray-green leaves, pointed at each end. Upper leaves are alternate and lower leaves are whorled. The alternate leaves are densely distributed all around the central stem, appearing to be opposite or whorled, and vary little in length.
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Stem:
- Stem Is Aromatic:
- No
- Stem Surface:
- Smooth (glabrous)
- Stem Description:
- The central stem has a few hairs near its apex, but becomes glabrous or slightly woody near its base.
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Landscape:
- Landscape Location:
- Container
- Naturalized Area
- Landscape Theme:
- Children's Garden
- Cutting Garden
- Attracts:
- Bees
- Butterflies
- Resistance To Challenges:
- Dry Soil
- Poor Soil
- Problems:
- Invasive Species