emergent
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Wetland and Aquatic Plants of Oklahoma

Interactive Keys: Emergent

White Flowers

    
2. Flower with 3 highly modified petals 
          a. Habenaria spp.
          b.  Platanthera spp.
          c. Spiranthes spp.

Orchids (Orchidaceae)

Waterspider bog orchid (Habenaria repens Nutt) 
Native perennial.
                                                                                                                      Click thumbnails to enlarge
Habenaria repens map                                  Habenaria repens

NWI status: OBL


Green-fringed orchid (Platanthera lacera (Michx.) G. Don)
Native perennial

Platanthera lacera map

Note: This species is pollinated by the sphinx moth.

NWI status: FACW

Ladies'-tresses (Spiranthes spp.)
 
Marsh ladies’-tresses (Spiranthes odorata (Nutt.) Lindl.) 
Native perennial


Spiranthes odorata map

Note: Lip of the flower tends to be constricted about the middle.  All are pollinated by bumblebees.

NWI status: OBL  

Nodding ladies’-tresses (Spiranthes cernua (L.) L.C. Rich.) 
Native perennial 


Spiranthes cernua map                                          Spiranthes cernua

Note: Lip of the flower tapers toward the rear.

NWI status: FACW         

                                                                                       

Last update: 2/10/04
Comments to : Bruce Hoagland

bhoagland@ou.edu

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