Mudwort

Mudwort - Limosella aquatica

Description

A low, hairless plant with creeping and rooting runners. Leaves in basal clusters, linear oblong to elliptical, often broader above the middle, untoothed and rather fleshy. Flowers white, often marked with pink, 3 mm, bell shaped, 5 lobed, solitary.

Identification difficulty
Recording advice

Records from this species should be confirmed by a County Recorder for botany.  It is on the VC55 Rare Plant Register, and therefore a specimen should not be taken.  Take detailed field photos and submit to NatureSpot as soon as possible; and if you think you have found it in a new location, inform the County Recorder as soon you can. (RPR)

Habitat

Muddy margins of lakes and reservoirs.

When to see it

Flowers July to October.

Life History

Annual, sometimes perennial.

UK Status

Nationally scarce

VC55 Status

Rare in Leicestershire and Rutland; most records from Rutland Water, where it is threatened by an invasive non-native species

In the Flora of Leicestershire (Primavesi and Evans 1988) it was found in 2 of the 617 tetrads, and in the Flora of Rutland (Messenger 1971) in 1 tetrad.

It is listed on the current VC55 Rare Plant Register (Hall and Woodward 2022) as Locally Rare (i.e. present in less than 3 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

All NatureSpot records