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Yellow Pimpernel

Lysimachia nemorum

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Plant Profile

Flowering Months:
Primulaceae (Primrose)
Life Cycle:
Maximum Size:
30 centimetres tall
Gardens, grassland, hedgerows, riversides, waterside, woodland.

Yellow, 5 petals
Yellow, 5 petals. Easily confused with Creeping Jenny but can be distinguished by its flatter, star-shaped flowers and longer, more slender stems.
A globular capsule.
Bright green, short-stalked, opposite leaves which are heart-shaped, hairless and untoothed. Yellow Pimpernel is similar to Creeping Jenny but Creeping Jenny has got more rounded leaves than Yellow Pimpernel.
Other Names:
Creeping Jenny, Creeping Yellow Loosestrife, Wood Loosestrife, Wood Pimpernel, Yellow Loosestrife.
Frequency (UK):

Similar Species

Other Information


Lysimachia nemorum, commonly known as yellow pimpernel or wood pimpernel, is a species of perennial herb in the Primulaceae family. It is native to Europe, Asia and North America, and can be found in habitats such as woodlands, forest edges, and along streams. The plant has small, green leaves and small, yellow flowers that grow in clusters. It typically grows as a low-lying groundcover and is often used as an ornamental plant in gardens, particularly for its attractive flowers. It's not known to have any medicinal use, it's not recommended for any use.


Yellow Pimpernel, also known by its scientific name Lysimachia nemorum, is a flowering plant that belongs to the family Primulaceae. It is a herbaceous perennial plant that is native to Europe and Western Asia, and it is known for its bright yellow flowers that bloom from May to September.

Yellow Pimpernel is a low-growing plant that typically grows up to 30 cm in height. Its leaves are lance-shaped and arranged alternately on the stem. The flowers of the Yellow Pimpernel are usually solitary and have five petals that are bright yellow in color. The flowers are also trumpet-shaped, with a diameter of around 2 cm.

Yellow Pimpernel prefers damp and shady habitats, and it is often found growing in woodlands, hedgerows, and along stream banks. It can also grow in acidic soils and in areas with a pH of less than 6.5. The plant can spread rapidly through the production of runners, which can form dense mats in the soil.

In traditional medicine, Yellow Pimpernel has been used to treat a variety of ailments, including skin conditions, digestive disorders, and respiratory problems. The plant contains several biologically active compounds, including flavonoids, saponins, and tannins, which are believed to be responsible for its medicinal properties.

Yellow Pimpernel is also used in the landscaping industry as a ground cover, and it is popular in rock gardens and along garden paths. It is an attractive plant that is easy to grow and maintain, and it can add a splash of color to any garden.

Despite its many benefits, Yellow Pimpernel can be invasive in some areas, particularly in North America, where it has been introduced as an ornamental plant. In these areas, it can outcompete native plant species and disrupt local ecosystems. As such, it is important to be cautious when planting Yellow Pimpernel and to monitor its growth carefully to prevent it from becoming invasive.

Yellow Pimpernel is a beautiful and versatile plant that has many uses in both traditional medicine and landscaping. However, it is important to be aware of its potential to become invasive and to take appropriate measures to prevent this from happening. With proper care and attention, Yellow Pimpernel can be a valuable addition to any garden or natural area.

Yellow Pimpernel has a long history of use in traditional medicine. In ancient Greece, the plant was used to treat liver and gallbladder problems, and in medieval Europe, it was believed to have the power to ward off evil spirits. The plant was also used in traditional Chinese medicine to treat a variety of ailments, including fever, inflammation, and pain.

Studies have shown that Yellow Pimpernel has a number of pharmacological effects, including antioxidant, anti-inflammatory, and antimicrobial properties. The plant has also been found to have potential anticancer properties, as some of its compounds have been shown to inhibit the growth of cancer cells in vitro.

In addition to its medicinal properties, Yellow Pimpernel is also used as a natural dye. The plant contains a yellow pigment called lysimachia, which can be extracted and used to dye textiles and paper.

Yellow Pimpernel is an important food source for a variety of insects, including bees and butterflies. The plant's nectar-rich flowers provide an important source of food for these insects, and its leaves and stems are also consumed by a number of herbivorous insects.

Overall, Yellow Pimpernel is a versatile and valuable plant with a wide range of uses. While it can be invasive in some areas, it can also provide important benefits, including medicinal properties, landscaping value, and ecological benefits. As with any plant, it is important to be aware of its potential risks and benefits and to use it responsibly.

30 Facts about Yellow Pimpernel

  1. Yellow Pimpernel, also known as Lysimachia nemorum, is a flowering plant that belongs to the Primulaceae family.

  2. It is a native plant to Europe, where it can be found in damp, shaded areas such as woodlands, meadows, and hedgerows.

  3. Yellow Pimpernel has several common names, including Wood Loosestrife, Creeping Jenny, and Yellow Loosestrife.

  4. The plant is a perennial herb that can grow up to 50 cm tall.

  5. It has slender, creeping stems that produce small, yellow flowers from May to September.

  6. The flowers of Yellow Pimpernel are star-shaped and have five petals that are fused at the base.

  7. The plant's leaves are glossy, dark green, and oval-shaped with smooth edges.

  8. Yellow Pimpernel is a popular ornamental plant due to its attractive flowers and leaves.

  9. It is also used in traditional herbal medicine to treat various ailments, including digestive disorders and respiratory problems.

  10. Yellow Pimpernel is known to have anti-inflammatory, antispasmodic, and diuretic properties.

  11. The plant is rich in flavonoids, which are natural compounds with antioxidant properties.

  12. Yellow Pimpernel is often used in natural skin care products due to its soothing and healing properties.

  13. The plant is easy to grow and can be propagated by division or by planting cuttings.

  14. It prefers moist, well-drained soil and partial shade.

  15. Yellow Pimpernel is a popular plant for attracting pollinators such as bees and butterflies.

  16. The plant is also a food source for various insects, including the Yellow Underwing Moth.

  17. In some parts of Europe, Yellow Pimpernel is considered a weed due to its ability to spread rapidly and outcompete other plants.

  18. The plant has been introduced to North America and is now considered an invasive species in some areas.

  19. Yellow Pimpernel is toxic to livestock, and its consumption can cause digestive problems and even death in some cases.

  20. The plant's sap can also cause skin irritation in some individuals.

  21. In folklore, Yellow Pimpernel was believed to have magical properties and was used in various spells and potions.

  22. In some cultures, the plant was associated with the sun and was used in sun-worshipping rituals.

  23. Yellow Pimpernel is a popular subject in literature and art, with references dating back to ancient Greece.

  24. The plant's scientific name, Lysimachia, is derived from the Greek word "lysima," which means to loosen or dissolve, referring to the plant's traditional use as a laxative.

  25. The species name, nemorum, means "of the woods" in Latin, reflecting the plant's natural habitat.

  26. Yellow Pimpernel is sometimes confused with other plants in the Primulaceae family, including the similar-looking Trientalis europaea.

  27. In some areas, Yellow Pimpernel is protected due to its rarity or threatened status.

  28. The plant is sometimes used as a natural dye, producing a yellow color.

  29. Yellow Pimpernel is a low-maintenance plant that requires little care once established.

  30. It is a popular plant for ground cover due to its ability to spread and form dense mats.


Yellow Pimpernel filmed in Capernwray (Lancashire) and Kentmere (Cumbria) on the 1st June 2023, and Arnside Knott, Cumbria on the 3rd June 2023.


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