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Cyperus elegans Linnaeus. Royal Flatsedge, Sticky Flatsedge. Phen: Jul-Nov. Hab: Ditches, wet open areas, coastal rock barrens. Dist: FL, AL, MS, TX, and NM, south to South America.

ID notes: The combination of involute leaves, viscid surfaces, and excurrent-mucronate scale apices is sufficient to distinguish C. elegans from all other Cyperus except C. oxylepis. In the field, the dark, broadly obovoid achenes of C. elegans are conspicuous, visible through the pale olivaceous scales as circular blackish spots.

Origin/Endemic status: Native

Synonymy ⓘ: = Bah, ETx1, FNA23, K3, K4, Mex, NcTx, WH3; > Cyperus elegans L. var. elegans – Tx

Links to other floras: = Cyperus elegans - FNA23

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACW
  • Great Plains: FACW

Heliophily ⓘ: 9

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image of plant© Keith Bradley | Original Image ⭷
image of plant© Keith Bradley | Original Image ⭷
image of plant© Keith Bradley | Original Image ⭷

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See something wrong or missing on about Cyperus elegans? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.