CYPBRACBAE 



I N . I ■ 

 ingle native species growing in i 





Poales ( irass ( )rder 



Cyperaceae — Sedge Family 

 Grass-like herbs, animal or pen nnial ; ■■ 

 mostly long and narrow, with closed sheaths, 3-ranked on ll 

 ii h (lower in the axil of a 



barbed bristles or hairs, scales 2-\ 

 attache, 1 at the basi ; pistil « ith 2 

 triangular nutlet or . 



Key 



the Genera 



1. Flowers perfect, spikes (spikelets) all of one - 



a. Spikes cone-shaped; scales very numen 



(1) Achene crowned by a cap or tubercle 



(2) Achenes without a cap or tubei 



b. Spikes (spikelets) flattened; scales 2 ranked 



(1) Flowers without bristles, achenes 



(2) Flowers with 6-10 bristles, iked 



2. Flowers monoecious, in the same or in 



dioecious ; achene enclosed in a 



Heleocharis — Spike Rush 



(Gr. helos, marsh, chairo, delight in, 



1. Plants tufted, without conspicuous rootstocks //. . 



2. Plants not tufted, perennial from an elongated roof //. ; 



Scirpus — Bulrush. Club Rush 

 (Lat, scirpus, bulrush) 



1. Tall aquatic rush, inflorescence without leafy involucre 



2. Swamp or wood plants, involucre leafy 



a. Style 3-cleft, achene 3-angled, bristles 6 



b. Style 2-cleft, achene plano-convex, bristles 4 







■ diandrus 





