Main page    Foliage    Sporocarps (flowers)    Rhizoids (roots)    Control


The formation of sporocarps in late March and early April  is important.  Liverwort (Marchantia polymorpha) are much more difficult to control chemically after sporocarp formation.  Optimum time for control is before sporocarp formation in February or early March.


Liverwort (Marchantia polymorpha)

Liverworts are unisexual.  Each plant is either male or female, though I often see at least one of each sex growing in a container.  Female sporocarps (above and below) originate from female plants and have finger-like projections that form on the end of 2 cm tall stalks (called gametophytic stalks).

Liverwort (Marchantia polymorpha)




Liverwort (Marchantia polymorpha)

Male sporocarps originate from male plants and are flat (they appear more umbrella-shaped).



Liverwort (Marchantia polymorpha)

Sporocarps originate from the middle of liverwort thalli (leaves).

Liverwort (Marchantia polymorpha)



Return to the Weed Species Page

Return to the Weed Management Homepage



Mail comments to James Altland