Marsh Lousewort
Marsh Lousewort - above Malham tarn
Single flower with lobed, hairy calyx
View from above - 3-lobed pink lower lip
Lower leaves, purple stem
Pedicularis palustris
Orobanchaceae
Red Rattle
May to September
It is found mainly in the Northwest, the Southwest and
Norfolk.
It is thinly scattered in the rest of the country.
See the BSBI distribution map for Marsh Lousewort
It grows in wet habitats, such as wet heaths, meadows
ditches and hillside flushes.
Marsh Lousewort is a native, annual or biennial root
-hemiparasitic herb, growing up to 60cm.
Flowers are pink purple (2-2.5cm), with the upper lip
darker than the 3 -lobed lower, spreading lips.
The calyx is hairy with 2 leaf-like lobes.
Stems are often purple.
Leaves are up to 4cm long, oblong with equal sized,
pinnate lobes.
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Next page: Marsh Stitchwort
Marsh Lousewort - above Malham tarn
Single flower with lobed, hairy calyx
View from above - 3-lobed pink lower lip
Lower leaves, purple stem
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