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In both species, the achenes may have whitish encrustations or papillae, or may simply be smooth but for delicate horizontal striations.


1. Scales glabrous; style 3-cleft, glabrous; achenes 3-sided, ca. 0.4–0.7 mm long; anthers ca. 0.3 mm long; plant a delicate tufted annual.

F. autumnalis

1. Scales finely pubescent, at least distally; style 2-cleft, ciliate below; achenes biconvex, ca. 1–1.4 mm long; anthers 1.5–1.7 mm long; plant a hard-based, stiff perennial.

F. puberula

All species found in Fimbristylis

Fimbristylis autumnalisAUTUMN SEDGE 
Fimbristylis puberulaCHESTNUT SEDGE 


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. September 24, 2022. https://michiganflora.net/genus.aspx?id=Fimbristylis.