Carex nudata is a species in the Cyperaceae (Sedge) family known by several common names, including Torrent Sedge, California Black-flowering Sedge, Dudley’s Sedge, and Naked Sedge. This is a bright green sedge which grows in mounds below the high-water mark in marshes and on river banks. It bears long scaly spikes of black, dark reddish or dusky brown flowers, which begin erect and then droop when they become heavy. It grows amidst rocks and becomes a dense mounding tussock. It is found mainly in California and Oregon.
Carex nudata
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