_PERMIT FILE - M1981302 ‎(35)‎

• Permit No: M1981302
• IBM Index Class Name: Permit File
• Doc Name: VEGETATION
• Media Type: D
• Archive: No

Numerous other semi-aquatic species occur in the sedge
meadows .
Although the floodplain of South Boulder Creek appears to
be uniform, small topographic changes produce different
environmental characteristics and, consequently, different
vegetation types . Clear-cut boundaries between these
prairie and sedge meadow vegetation types do not exist,
but rather the distribution of these .communities occurs
along a subtle moisture gradient with short grasses dominant
on the drier sites, tall grasses on intermediate sites and
sedge meadows on the moistest areas.
• Marsh vegetation is restricted within the study area and
occurs only in the shallow waters surrounding the existing pond.
Cattails (Typha latifolia) , bulrushes (Scirpus lacustris) and
many other aquatic plants occur in these communities .
Construction of a gravel pond and changes in the rater ragine
brought about by highway construction have produced the
necessary, environmental characteristics for establishment and
growth of these communities.
In prairie environments , trees are either absent or are
• restricted to streamside areas . On the South Boulder Creek
floodplain, cottonwood trees (Populus sargentii and Populus
angustifolia) originally grew only along the stream, but now
P-3