Riccia ciliata
Local name: hårig rosett
Photo: Photo: (c) Miguel Hernández, all rights reserved, uploaded by Miguel Hernández
Overview
Riccia ciliata is a small thallose liverwort characterized by its distinctive hairy or ciliated margins that give it its common name 'hårig rosett' (hairy rosette). This bryophyte forms small, flat, ribbon-like green thalli that grow in rosette patterns on bare soil surfaces. As a pioneer species, it plays a crucial role in soil stabilization and provides microhabitat for other small organisms in early successional communities.
Riccia ciliata faces severe threats primarily from habitat loss and degradation of its specialized wetland environments. The species requires specific moisture conditions and substrate types that are increasingly rare due to human activities and climate change. Its extremely limited distribution makes it particularly vulnerable to local extinctions.
Habitat
Riccia ciliata typically inhabits the muddy margins of temporary pools, ditches, and seasonally flooded areas where it colonizes bare, mineral-rich soils. It thrives in areas with fluctuating water levels that experience periodic drying, often found alongside other ephemeral wetland specialists in agricultural landscapes and floodplains.
Other threatened species in Ricciaceae
Frequently asked questions
Why is hårig rosett classified as Critically Endangered?
Where does hårig rosett live?
What are the main threats to hårig rosett?
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