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Platanthera praeclara (Great plains white fringed orchid)
Bransford, W.D. and Dolphia

Platanthera praeclara

Platanthera praeclara Sheviak & Bowles

Great Plains White Fringed Orchid

Orchidaceae (Orchid Family)

Synonym(s): Habenaria leucophaea var. praeclara

USDA Symbol: PLPR4

USDA Native Status: L48 (N), CAN (N)

An orchid of moist grasslands in central North America, where it ranges from northeastern Oklahoma to southern Manitoba. The Canadian government lists it as an endangered species, as it is limited to a single site in southern Manitoba.


From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Complexity: Simple
Fruit Type: Capsule
Size Notes: Up to about 32 inches tall.

Bloom Information

Bloom Color: White
Bloom Time: May , Jun , Jul , Aug


USA: IA , KS , MN , MO , ND , NE , OK , SD
Canada: MB
Native Habitat: Prairie/Meadow/Field

Growing Conditions

Light Requirement: Sun
Soil Moisture: Moist , Wet
Soil pH: Alkaline (pH>7.2)
CaCO3 Tolerance: High


Conspicuous Flowers: yes

U.S. Fish & Wildlife Service Threatened & Endangered Status

USFWS Species Profile: Q2YD
Status: Threatened
Historic Range: U.S.A. (IA, KS, MN, MO, ND, NE, OK, SD), Canada (Man.)
Critical Habitat: N/A
Special Rules: N/A
This information is derived from the U.S. Fish & Wildlife Serrvice Environmental Conservation Online System.

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 35 - Go Orchids (2019) North American Orchid Conservation Center (NAOCC)
Webref 12 - Great Lakes Ecological Assessment: Threatened, Endangered, or Sensitive Species (2012) USDA Natural Resources Conservation Service

Additional resources

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


Record Modified: 2022-12-06
Research By: TWC Staff

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