Marsh Valerian

Marsh Valerian - Valeriana dioica

Description

Short to medium height plant usually with several erect stems, slightly hairy at the nodes. Stem leaves pinnately lobed, mostly unstalked. Flowers pink, occasionally white, 2 to 4 mm in rounded clusters.

Similar Species

Common Valerian

Identification difficulty
ID checklist (your specimen should have all of these features)

Stoloniferous. Basal and stolon leaves are simple and entire; stem leaves pinnate with several lateral leaflets. 

Recording advice

Photographs must show basal and stem leaves as well as flowers - this plant can't be verified from a picture of the flowers alone (RPR)

Habitat

Wet places, on calcareous or slightly acid soils.

When to see it

May to July.

Life History

Perennial.

UK Status

Widespread in Britain as far north as the Firth of Forth.

VC55 Status

Scarce in Leicestershire and Rutland, and declining due to habitat-loss.

In the Flora of Leicestershire (Primavesi and Evans 1988) it was found in 23 of the 617 tetrads, and in 9 tetrads in the Flora of Rutland (Messenger 1971).

In the VC55 checklist, (Jeeves 2011) it is listed as Native, marshes, now scarce.

It is listed on the current VC55 Rare Plant Register (Hall and Woodward 2022) as Locally Scarce (i.e. present in 4-10 sites).

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Additional images

No additional images available for this species.

All NatureSpot records

Photo of the association

Uromyces valerianae

Uromyces valerianae is a gall-causing rust fungus affecting Common Valerian and Marsh Valerian. The small uredinia and telia are brown.