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

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

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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