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Native Plant Database

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Platanthera orbiculata (Lesser roundleaved orchid)
McAdoo, David R.

Platanthera orbiculata (Pursh) Lindl.

Lesser roundleaved orchid, Roundleaf Rein Orchid, Round-leaved orchid

Orchidaceae (Orchid Family)

USDA Symbol: PLOR4

USDA Native Status: Native to U.S.

1 stalk rising between 2 broadly elliptical or round basal leaves lying on ground, bearing up to 25 white or greenish-white, bilaterally symmetrical flowers in a raceme.

This species has the largest flowers of all western rein orchids. Several kinds of moths feed on nectar in the spur and probably pollinate the flower.

 

From the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Complexity: Simple
Fruit:

Bloom Information

Bloom Time: Jun , Jul , Aug

Distribution

USA: AK , CT , ID , IL , IN , MA , MD , ME , MI , MN , MT , NC , NH , NJ , NY , OH , PA , RI , SD , TN , VA , VT , WA , WI , WV
Canada: NB , NL , NS , PE
Native Distribution: British Columbia east to Labrador and south to northern Oregon, northern Idaho, and northwestern Montana; also in northern regions of eastern United States.
Native Habitat: Moist forest floors.
USDA Native Status: L48(N), AK(N), CAN(N), SPM(N)

Recommended Species Lists

Find native plant species by state. Each list contains commercially available species suitable for gardens and planned landscapes. Once you have selected a collection, you can browse the collection or search within it using the combination search.

View Recommended Species page

Additional resources

USDA: Find Platanthera orbiculata in USDA Plants
FNA: Find Platanthera orbiculata in the Flora of North America (if available)
Google: Search Google for Platanthera orbiculata

Metadata

Record Modified: 2012-09-30
Research By: TWC Staff

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