|Scientific Name||Platanthera dilatata var. albiflora||USDA PLANTS Symbol||PLDIA|
|Common Name||White Bog Orchid, Scentbottle||ITIS Taxonomic Serial No.||196400|
|Family||Orchidaceae (Orchid)||Flora of North America Ref.||Click Here|
Life zones and habitat: Montane to alpine (7500 to 12500); marshes, streamsides, and moist areas in meadows and woodlands.
Plant: Erect, sturdy perennial, 6 to 60 inches tall, but usually 20 inches tall or less in CO; leafy stem.
Leaves: Two to 5 alternate leaves 2 to 10 inches long; recurved (bending backward), lanceolate to elliptic-lanceolate, gradually becoming linear-lanceolate bracts higher up on the stem.
Inflorescence: A raceme of 10 to 70 bright white, fragrant flowers about 1/2-inch across with 3 sepals and 3 petals (all white), upper two petals joining with a sepal to form a hood; lower petal forms a lip that is broader at the base (“dilated”) than the tip; green, club-shaped spur below is significantly shorter than the lip.
Bloom Period: May to August.
References: "Flora of Colorado" by Jennifer Ackerfield, "Guide to Colorado Wildflowers" by G.K. Guennel, University of Wisconsin Botany Dept., and USFS article by Walter Fertig.
|BONAP Distribution Map
© Tom Lebsack 2023
Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County