Reprinted with permission from the 

 New Bntton and Brown Illustrated 

 Flora of the Northeastern United 

 States and Adjacent Canada, 

 Vol 1. page 253. Copyright 1952, 

 The New York Botamcal Garden. 



CYPERUS SCHWEINITZII 

 SCHWEINITZ' FLATSEDGE 



Schvveinitz' Flatsedge is a grass-like perennial with stems that are 10-40 cm high, arising from short, irregularly swollen 

 rhizomes. The leaves are 1 -4 mm wide and located mostly near the base of the stem. The inflorescence is subtended by 3-6 

 long, leaf-like bracts, some of which are wider than the leaves. The infloresence is made up of ascending clusters of flattened 

 spikelets that are 5-25 mm long and borne on stalks that are very short to long. The flowers are crowded opposite each other 

 and consist onlj of a small, pointed scale, that is ca. 3-4 mm long and subtends 3 stamens and an ovary. The seed is triangular 

 in cross-section. Fruit mature in late Jime-July. 



This is our only perennial CYPERUS and is the only one occurring in upland habitat. 



