Taxonomy
- Kingdom: Plantae
- Clade: Angiosperms → Eudicots → Asterids
- Order: Dipsacales
- Family: Caprifoliaceae
- Genus: Valeriana
- Species: Valeriana pyrenaica L.
Common names
Capon’s tail grass, Pyrenean valerian.
Description
Valeriana pyrenaica is a perennial herbaceous plant reaching up to about 1.2 m (4 ft) in height. It forms erect, bushy stems bearing large, heart‑shaped, softly hairy leaves. The inflorescences are dense terminal heads of small, pale lilac to light pink flowers that appear in late spring to early summer. The flowers are fragrant and attract insects, particularly bees.
Distribution and habitat
The species is native to the mountainous regions of the western Pyrenees and the Cantabrian Mountains, occurring in Spain and France. It typically grows in moist, well‑drained soils near streams and other water sources at mid‑ to high‑elevations. In addition to its native range, V. pyrenaica has become a garden escapee in parts of Ireland and Great Britain, where it occasionally establishes in suitable wild habitats.
Ecology
The plant’s nectar‑rich flowers provide a food source for pollinating insects. Its preferred wet habitats help stabilize soil on riverbanks and slopes.
Cultivation
Gardeners value V. pyrenaica for its attractive foliage and delicate flower heads. It thrives in moist, fertile soils with partial shade to full sun and is often used in herbaceous borders, cottage gardens, or naturalized areas near water features. The species self‑sows readily, and clumps can be divided in spring or autumn to promote vigorous growth.
Conservation status
No specific global threat assessment has been published for Valeriana pyrenaica. Its populations appear stable within its native mountainous range, and it is not listed as threatened on major conservation red lists.
References
- Royal Horticultural Society, plant profile for Valeriana pyrenaica.
- Plants of the World Online (Kew Science), taxonomic information.
- Primary description on Wikipedia (accessed via public domain source).