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Taxon  Report  
Platanthera dilatata  (Pursh) Lindl. ex Beck  var. leucostachys  (Lindl.) Luer
Sierra bog orchid,   White Flowered Bog-Orchid
Platanthera dilatata var. leucostachys is a perennial herb that is native to California, and also found elsewhere in North America and beyond.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial

Bloom Period
Parent: Platanthera dilatata
Genus: Platanthera
Family: Orchidaceae  
Category: angiosperm  
PLANTS group:Monocot
Jepson eFlora section: monocot

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Communities: Yellow Pine Forest, Red Fir Forest, Mixed Evergreen Forest, Coastal Prairie, wetland-riparian

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
JEF + PLANTSHabenaria dilatata var. leucostachys
PLANTSHabenaria leucostachys
PLANTSLimnorchis graminifolia
JEF + PLANTSPlatanthera leucostachys
Information about  Platanthera dilatata var. leucostachys from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora


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ID Tips on PlantID.net

[goorchids.northamericanorchidcenter.org] Pollination, Description, Range: Pollination The fragrant white flowers of this orchid may be visited day or night by skippers or the nectar-drinking owlet moth, Mesogona olivata. These moths do not hover while they feed from orchids, but must land on the flower like a bee or hoverfly. The different lengths and shapes of the nectar-secreting spur found in the three varieties of this orchid strongly suggests that different insects pollinate this orchid over its broad range. Platanthera dilatata var. leucostachys has a slender white spur, much longer than the labellum and is restricted to the Pacific Northwest from British Columbia deep into California. (link added by Mary Ann Machi)

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 07/19/2024).