Marchantia polymorpha
English: Common liverwort; Umbrella liverwort.
German: Gemeines Brunnenlebermoos
Botany: has a cone-shaped beaker.
Region: cosmopolitan, worldwide.
Clades: Plants; Bryophyta; Marchantiophyta; Marchantiopsida; Marchantiales; Marchantiaceae
Botany: dioicous, having separate male and female plants; thallose liverwort which forms a rosette of flattened thalli with forked branches; thalli of 10 by 2 cm, usually green, older ones brown or purplish, upper surface has hexagonal markings, underside is covered by many root-like rhizoids; umbrella-like reproductive structures, female gametophores liek astalk with star-like rays at the top, male gametophores are topped by a flattened disc containing the antheridia which produce sperm; reproduces asexually by gemmae.