Compact Rush - Juncus conglomeratus


An erect plant with a dull green stem bearing 12 to 30 strong longitudinal ridges. Inflorescence always compact and dark red brown.

Similar Species

A form of Juncus effusus has a compact inflorescence

Identification difficulty
ID guidance

Stems strongly ridged, but less so than hard-rush, and not greyish; inflorescence compact

Recording advice

Photo showing plant in its habitat, and detailed photo showing ridged stem and inflorescence


Damp grassland, marshes, bogs and wet open woods.

When to see it

June to August.

Life History


UK Status

Fairly common throughout Britain.

VC55 Status

Fairly common in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 278 of the 617 tetrads.

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
Compact Rush
Species group:
Grasses, Rushes & Sedges
Records on NatureSpot:
First record:
01/01/1979 (Patricia Evans)
Last record:
21/06/2023 (Nicholls, David)

Total records by month

% of records within its species group

10km squares with records

The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.

In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.

Latest images

Latest records