Taxon  Report   3020    
Epipactis gigantea  Douglas
Giant helleborine,  Stream orchid, Stream orchis
Epipactis gigantea
© 2007 Jason E. Willand
Photos from
CalPhotos / Calflora
Epipactis gigantea
© 2008 Dee E. Warenycia
Epipactis gigantea
© 2018 Ron Vanderhoff
Epipactis gigantea, a monocot, is a perennial herb that is native to California, is also found elsewhere in North America and beyond.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Epipactis gigantea
© 2005 Aaron Schusteff
Genus: Epipactis
Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, Foothill Woodland, Chaparral, Valley Grassland, (many plant communities), wetland-riparian

Wetlands: Occurs in wetlands

Habitat: streambanks

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
ICPN: Epipactis gigantea f. rubrifolia
More information about  Epipactis gigantea
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2018. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Dec 18, 2018).