Three-cornered Garlic - Allium triquetrum


    Short to medium tufted plant. Leaves 2 or 3, floppy, triangular in section like the scape, mostly basal. Spathe 2 valved, equalling the umbel. Flowers white, bell shaped, 10 to 18 mm long, drooping in a one sided umbel, the pointed tepals with a green midvein on the back.

    Identification difficulty

    Damp and shaded habitats, woods, scrub, steam banks and hedgerows.

    When to see it

    April to June.

    Life History

    The seeds of Three-cornered Garlic are spread naturally by ants. It was established initially in Guernsey in 1849 and is now naturalised and increasingly abundant and widespread in milder areas of the UK, especially in the south and west, with scattered, sometimes short-lived, populations elsewhere.

    UK Status

    It has a westerly distribution being quite common in Devon and Cornwall, but scattered elsewhere.

    VC55 Status

    Rare in our area, the Sapcote record of 10th May 2007 was the first record for Leicestershire and Rutland (VC55).

    Further Information

    Three-cornered Garlic can be a threat to native flora as it forms monocultures that smother other plants. It is listed under Schedule 9 to the Wildlife and Countryside Act 1981 with respect to England, Wales and Scotland. As such it is an offence to plant or otherwise cause this species to grow in the wild. For details of legislation see here.

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    Leicestershire & Rutland Map

    MAP KEY:

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

    UK Map