Nardia scalaris
| Common Name | Ladder Flapwort |
| Frequency | Frequent |
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Distinguishing Features
The most common and variable member of the genus, N. scalaris presents as a reliably green mat-forming species with prostrate shoots typically to 3 cm long and roughly 2 mm wide. The lateral leaves are unlobed, broadly elliptical and attached at there base across the axis of the stem, while the underleaves are simple and elongate and should be visible with a hand lens. This is a dioicous species and its leaf cells under the microscope have 2 or more oil bodies and substantially-thickened walls “trigones” at their junctions.
Similar species
See table for comparison of regional species of Nardia
Habitat
Moist to wet, often shady mineral soil, rock outcrops, cliffs, ledges, crevices, boulders, streambanks, shorelines, waterfall spray zones, and disturbed areas in the lowland, montane, subalpine, and alpine zones
Associated species
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Distribution Map
Relevant Literature
- Godfrey, J.D. (1977). Hepaticae and Anthocerotae of southwestern British Columbia . [Doctoral dissertation, University of British Columbia]. UBC cIRcle.
- Hong, W. S. (2007). Scapania. In Flora of North America Editorial Committee (Eds.), Flora of North America North of Mexico (Vol. 3) . Oxford University Press.
- Wagner, D. H. (2013). Guide to the liverworts of Oregon: Scapania undulata . Oregon State University Herbarium.