Centranthus ruber

Centranthus ruber 1

Centranthus ruber growing on wall (Ireland)

Centranthus ruber forma albus 2007-06-02 (flower)

Centranthus ruber B

VALERIANS

Centranthus ruber (Centranthus ruber), commonly known as Red Valerian, Jupiter's Beard, or Spur Valerian, is a species of plant in the family Caprifoliaceae, native to the Mediterranean region. It has become widely naturalized in many parts of the world, including North America, where it is often found in habitats such as roadsides, walls, and cliffs.

Description

Centranthus ruber is a perennial plant that can grow up to 70 cm in height. Its stems are upright and branching, with lance-shaped, bluish-green leaves that are 5–8 cm long. The plant is well known for its dense clusters of small, fragrant flowers, which bloom from late spring to autumn. The flowers are typically bright red, but pink and white varieties also exist. Each flower is tubular and ends in a five-lobed corolla.

Habitat and Distribution

Originally from the Mediterranean region, Centranthus ruber has been introduced to many parts of the world, including North America, Australia, and New Zealand. It prefers well-drained soils and is commonly found in urban settings, such as walls and gardens, as well as in natural rocky areas and cliffs. Its ability to thrive in a wide range of conditions has contributed to its widespread distribution.

Cultivation and Uses

Centranthus ruber is popular in horticulture for its attractive flowers and ease of care. It is used in gardens and landscaping to provide color and cover. The plant is drought-tolerant and can thrive in poor soils, making it a versatile choice for challenging environments. It is also valued for its ability to attract pollinators, such as bees and butterflies.

In addition to its ornamental uses, Centranthus ruber has been used in traditional medicine, although scientific evidence supporting its efficacy is limited.

Conservation

While Centranthus ruber is not considered endangered in its native range, its introduction to non-native areas has raised concerns about its potential to become invasive. In some regions, it competes with native flora and is subject to control measures to prevent its spread.

Gallery

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See Also

• Invasive species
• Mediterranean Basin
• Pollinator

References

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