Stachys palustris
Lamiaceae
June to September
It is found throughout the country.
See the BSBI distribution map for Marsh Woundwort
It grows in damp places by fresh water, such as, canals,
ditches, ponds, rivers and streams.
Marsh Woundwort is a native, rhizomatous, perennial
herb growing up to 1m.
The flowers are in whorls on a spike.
They are pink/purple, up to 18mm and with a flattish,
hooded upper lip and a 3-lobed lower lip.
There are 4 purple stamens with 2 shorter.
The single style is white with 2 stigmas.
The calyx is prominent with 5 dark red lanceolate
lobes.
Leaves are sessile, crenate and lanceolate.
They are narrower than in Hedge Woundwort.
Stems are square.
Marsh woundwort forms colonies spread via its
rhizomes.
Previous page: Marsh Thistle
Next page: Meadow Clary
Marsh Woundwort at the edge
of a pond
Flower spike
Whorl of flowers
Flowers - slightly hooded upper lip
and 3-lobed lower lip
Glandular upper lobe, stamens and style
Close-up of style with 2 stigmas and
4 stamens with 2 shorter
Prominent calices
Side view of flower lobes with calyx
Sessile leaves
Square hairy stem, crenate leaves
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