Guernsey Fleabane - Conyza sumatrensis

    Alt Name
    Tall Fleabane, Broad-leaved Fleabane
    Description

    A tall (to over 1.5 metres) and very conspicuous plant when mature.  Flowers with hairy phyllaries. 

    Similar Species

    There are 3 very similar Conyza (syn - Erigeron): Canadian, Bilbao's and Argentine Fleabanes.  Separating them is tricky; reference should be made to the key in Stace (4th edition)

    Identification difficulty
    ID guidance

    Inflorescence is pyramidal, and pappus is yellowish-white.  The phyllaries are greyish green, and hairy; they may be minutely red-tipped (not always).   C bonariensis (Argentine) often has conspicuously red-tipped phyllaries.  Both species have curved marginal hairs on proximal (end closest to leaf-stalk) region of leaves; Canadian and Bilbao's have straight hairs in this region. 

    Recording advice

    The County Recorder has asked for a specimen of this plant to be retained for verification

    Habitat

    Usually found in areas of well-drained, open and disturbed ground, such as waste land, railway-sides and docks, chiefly around towns. It also occurs as a wool casual.

    When to see it

    Flowering July to October.

    Life History

    Annual. Fruit is wind-dispersed.

    UK Status

    Becoming widespread and increasingly frequent in many parts of Britain.

    VC55 Status

    A new arrival to our region in 1997, it seems to be increasing in Leicestershire and Rutland. It was not recorded in the 1979 Flora survey of Leicestershire.

     

    Leicestershire & Rutland Map

    UK Map