| H | south European orchid having fragrant greenish-white flowers |
|---|---|
| H | south European orchid with dark green flowers that are larger and less fragrant than Platanthera bifolia |
| H | orchid with spikes of many fragrant white flowers on erect leafy stems |
| H | slender inland rein orchid similar to coastal rein orchid but with pale greenish-yellow flowers |
| H | North American orchid similar to Habenaria psycodes with larger paler flowers |
| H | stout orchid of central California to northern Washington having racemes of white fragrant bilaterally symmetrical flowers |
| H | a long-spurred orchid with base leaves and petals converging under the upper sepal |
| H | fringed orchid of the eastern United States having a greenish flower with the lip deeply lacerate |
| H | orchid of boggy or wet lands of north central United States having racemes of very fragrant creamy or greenish white flowers |
| H | slender fringed orchid of eastern North America having white flowers |
| H | orchid having a raceme of large greenish-white flowers on a single flower stalk growing between two elliptic or round basal leaves lying on the ground |
| H | orchid of northeastern and alpine eastern North America closely related to the purple fringed orchids but having rosy-purple or violet flowers with denticulate leaf divisions |