Northern Green Orchis

(Platanthera hyperborea)

 

   

 

 

Color Photograph: NRCS Plants Database, U.S. Department of Agriculture

G.C. Oeder et al., 1761-1874. Flora Danica.

Line Drawing: Britton, N.L., and A. Brown. 1913. An Illustrated Flora of the Northern United States and Canada, Second Edition.

 

Northern Green Orchis (Platanthera hyperborea [L.] Lindl.)

Identification: Flowers green to yellow-green, with a elongate, rear spur. Lower petal elongate, pointed, unfringed. Spur about one-half as long as lower petal. Upper petal concave, helmetlike. Flowers is a tight, terminal raceme. Leaves elongate, slightly ovate, become smaller the further up the stem. Plant 8 to 30 inches in height.

Distribution: Across Canada south to Minnesota, the Great Lakes States, and New England. Also found throughout the moutains of western North America. Also occurs in northern Europe and Asia.

Habitat: Northern Green Orchis is found in bogs, woods, and thickets.

Flowering period: May to July.

Similar Species: Long-bracted Orchis has elongate, grasslike bracts between the flowers of the raceme. The spur is reduced to a small, bulbous knob. The lower petal of Pale Green Orchis is broad with a blunt apex and a tooth on either side of the base of the lower petal. Hooker's Orchis has a single pair of large, broad leaves at the base of the plant and a naked stem.

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