Host an Event Volunteer Join Tickets

Support the plant database you love!


Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

Enter a Plant Name:
Or you can choose a plant family:
Platanthera dilatata var. leucostachys (Sierra bog orchid)
Cressler, Alan

Platanthera dilatata var. leucostachys

Platanthera dilatata (Pursh) Lindl. ex Beck var. leucostachys (Lindl.) Luer

Sierra Bog Orchid, Bog Rein Orchid

Orchidaceae (Orchid Family)

Synonym(s): Habenaria dilatata var. leucostachys, Habenaria leucostachys, Limnorchis graminifolia, Platanthera leucostachys


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

Erect, leafy stems with many fragrant, white, bilaterally symmetrical flowers in a spike.

Plants in the Rocky Mountain region often have more stout, shorter spurs. Study has shown that this plant, once called Habenaria dilatata, is better placed in the genus Platanthera, where it has been given a different scientific name for technical reasons; Platanthera refers to the wide anther.


From the Image Gallery

28 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Leaf Complexity: Simple
Fruit Type: Capsule
Size Notes: Up to about 4 feet tall.

Bloom Information

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


USA: AK , AZ , CA , ID , MT , NV , OR , UT , WA , WY
Canada: BC
Native Distribution: British Columbia south to southern California, northern Nevada, northwestern Arizona, southwestern Utah, Idaho, and northwestern Wyoming.
Native Habitat: Wet or boggy ground.

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Platanthera dilatata var. leucostachys in USDA Plants
FNA: Find Platanthera dilatata var. leucostachys in the Flora of North America (if available)
Google: Search Google for Platanthera dilatata var. leucostachys


Record Modified: 2023-04-25
Research By: TWC Staff

Go back