Cyperus bipartitus Torrey, Shining flatsedge
Cyperus bipartitus is common in Renfrew County. It is found in dense colonies on very wet open soils starting in late August and into October. C. bipartitus is easily distinguished from the similar but rarer C. diandrus by the color pattern on the floral scales and its lack of persistent stigmas.
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Figure 1. Inflorescences.
Figure 2. Spikelets, achenes and scales.
Figure 3. Habit.
Figure 4. Occurence map for Renfrew County and surrounding area.
| Accession # | Collector | Date |
|---|---|---|
| CAN 585349, CAN 585350 | D.F. Brunton | 1998-September-29 |
| CAN 527082 | A. Vogg | 1986-August-24 |
| CAN 497289 | A. Vogg | 1983-September-17 |
| CAN 497177 | A. Vogg | 1983-August-13 |
| CAN 468028 | S.J. Darbyshire | 1981-August-03 |
| CAN 437353 | H.L. Dickson & H. Simpson | 1977-August-25 |
| CAN 570142 | M.I. Moore | 1970-September-27 |
| CAN 570141 | M.I. Moore | 1968-September-03 |
| CAN 570139 | T.C. Brayshaw | 1962-September-17 |
| CAN 570138 | T.C. Brayshaw | 1961-September-15 |
| DAO 246308 | M.I. Moore | 1961-September-06 |
| DAO 246309 | W.G. Dore & A.J. Breitung | 1948-September-19 |