Yellow Iris - Iris pseudacorus

Alternative names
Yellow Flag
Description

Stout, medium to tall tufted, rhizomatous plant. Leaves long, sword shaped, 10 to 30 mm wide, with a conspicuous raised mid-rib, slightly grey-green. Flowers 4 to 12 yellow, 70 to 100 mm the broad oval falls, veined and dotted with green.

Identification difficulty
Habitat

Freshwater margins.

When to see it

June to August.

Life History

Perennial.

UK Status

Quite common throughout Britain.

VC55 Status

Fairly frequent in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 166 of the 617 tetrads.

Leicestershire & Rutland Map

MAP KEY:

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

UK Map

Species profile

Common names
Yellow Flag, Flag Iris, Yellow Iris
Species group:
Wildflowers
Kingdom:
Plantae
Order:
Asparagales
Family:
Iridaceae
Records on NatureSpot:
304
First record:
21/06/2001 (Jane McPhail;John Kramer)
Last record:
24/08/2023 (O'Brien, Helen)

Total records by month

% of records within its species group

10km squares with records

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