Cyperus retroflexus, Cyperus retrofractus, Cyperus retrorsus, Cyperus rotundus, Cyperus schweinitzii, Cyperus setigerus, Cyperus spectabilis, Cyperus
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familyCyperaceae genusCyperus subgenusCyperus subg. Cyperus speciesCyperus rotundus Linnaeus Sp. Pl. 1: 45. 1753. Gordon C. Tucker*, Brian G. Marcks*, J. Richard
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Gray Senecio elliottii Torrey & A. Gray Senecio elongatus Pursh Senecio rotundus (Britton) Small Treatment appears in FNA Volume 20. Treatment on page 594
4 KB (319 words) - 21:00, 5 November 2020
base of culm indurate; stolons indurate, wiry, springy when dried Cyperus rotundus 69 Culms 50–300 cm; 2d order rays 1–10 cm, distinctly flattened; 3d order
39 KB (517 words) - 15:42, 16 November 2022