image of the wild cyperus strigosus weed grasses.

angiosperms bloom blossom botany bract brown bunch cluster colored cyperaceae cyperus ecology false field flatsedge flora foliage grass green growth leaf leaflike leaves meadow monocots moorland mud nature nutgrass nutsedge outdoor pattern plant poales pond pool reed season sedge seed slender spike spikelet straw strigosus summer tracheophytes weed weedy wetland wild