Conyza sumatrensis (formerly known as C. floribunda
or C. albida; Asteraceae)
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Conyza sumatrensis (Fleabane) is common weed,
especially in warmer areas (e.g. Northern Tasmania). It is an erect
annual to about 1.2 m tall. It is light green or greyish green, with
narrow oblanceolate leaves and a pyramidal inflorescence.