Thread-leaved Water-crowfoot - Ranunculus trichophyllus

Alternative names
Thread-leaved Water Crowfoot

The flowers are white with yellow centres and are 7 to 12 mm across. All leaves divided into threadlike segments.

Similar Species

Other crowfoots

Identification difficulty
ID guidance

Ref. key in Stace.  The differences between species in this difficult subgenus are hard to tell from a photo.  Details of the flower petals and nectaries, and of the two types of leaf, are needed.  Capillary leaves are thread like, usually but not always submerged; and laminar are 'normal', usually floating or terrestrial, but not always. (RPR)

Recording advice

Photograph: in habitat, of both kinds of leaf, and a close-up of flower.  Take a specimen, including both types of leaf, if present, and retain it until your record is verified; you may need to send the specimen to the County Recorder.  An explanation of how it fits the key in Stace is needed.


Ponds, pond edges and rivers.

When to see it

May and June.

Life History


UK Status

Widespread and fairly frequent in Britain.

VC55 Status

Scarce in Leicestershire and Rutland.

In the Flora of Leicestershire (Primavesi and Evans 1988) it was found in 43 of the 617 tetrads, and in 8 tetrads in the Flora of Rutland (Messenger 1971).

It is listed as Native and Occasional, but less common than previously, in the current Checklist (Jeeves, 2011)

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


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map

Species profile

Common names
Thread-Leaved Crowfoot, Thread-leaved Water-crowfoot
Species group:
Records on NatureSpot:
First record:
22/04/2012 (Skevington, Mark)
Last record:
22/04/2012 (Skevington, Mark)

Total records by month

% of records within its species group

10km squares with records

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