emergent
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Wetland and Aquatic Plants of Oklahoma

Interactive Keys: Emergent

Grasslike

Sedges (Cyperaceae)

5. Beaksedges (Rhynchospora spp.)
            A. Seeds (achenes) with long projections
            B. Seeds (achenes) with short or no projections
                 i. Bristles on achenes with upward pointing barbs
                ii. Bristles on achenes with downward pointing barbs

Seeds (achenes) with long projections

Shortbristle horned beaksedge (Rhynchospora corniculata (Lam.) Gray) 
Native perennial.

Rhynchospora corniculata map                                 Rhynchospora corniculata                

NWI status: OBL

Tall horned beaksedge  (Rhynchospora macrostachya Torr. ex Gray)
Native perennial.

                                                                                                                                                              Click thumbnail to enlarge

Rhynchospora macrostachya map                                 Rhynchospora macrostachya

NWI status: OBL

Seeds with no projections

       i. Bristles on achenes with upward pointing barbs

Anglestem beaksedge (Rhynchospora caduca Ell.) 
Native perennial.

Rhynchospora caduca map                     Rhynchospora caduca          

NWI status: OBL

Globe beaksedge (Rhynchospora globularis (Chapman) Small) 
Native perennial.

Rhynchospora globularis map                                Rhynchospora globularis                                                  

NWI status: FACW

       ii. Bristles on achenes with downward pointing barbs

Needle beaksedge (Rhynchospora capillacea Torr.) 
Native perennial.

Rhynchospora capillacea map                                       Rhynchospora capillacea

NWI status: OBL

Brownish beaksedge (Rhynchospora capitellata (Michx.) Vahl) 
Native perennial.

Rhynchospora capitellata map                        Rhynchospora capitellata                                                             

NWI status: OBL 

Clustered beaksedge (Rhynchospora glomerata (L.) Vahl) 
Native perennial.

Rhynchospora glomerata map                                Rhynchospora glomerata

NWI status: OBL


Last update: 2/24/04
Comments to : Bruce Hoagland

bhoagland@ou.edu

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