Orchidaceae
Giant helleborine
Epipactis gigantea
- Family
- Orchidaceae
- Genus
- Epipactis
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Common names
By language (5)
- Bulgarian
- Гигантски дремник
- English
- Giant helleborine, Stream orchid
- nv
- Chʼał nineezí bidą́ą́ʼ, Náhookǫs beeʼiiłkóóh
- Russian
- Дремлик гигантский
- Spanish
- Heleborina gigante, Heleborina de los Arroyos
Synonyms
- Amesia gigantea (Douglas) A.Nelson & J.F.Macbr.
- Arthrochilium giganteum (Douglas) Szlach.
- Cephalanthera kokanica Regel ex Nevski
- Epipactis americana Lindl.
- Epipactis gigantea f. rubrifolia P.M.Br.
- Epipactis pringlei Gand.
- Helleborine gigantea Druce
- Helleborine gigantea (Douglas) Druce
- Limodorum giganteum (Douglas) Kuntze
- Peramium giganteum (Douglas) J.M.Coult.
- Serapias gigantea (Douglas) A.A.Eaton
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Canada: native, Lower 48 states: native
Photos
Photo: Wikimedia Commons contributor, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Stan Shebs, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Bill Bouton from San Luis Obispo, CA, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Bill Bouton from San Luis Obispo, CA, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Horticulturalist RJ, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Dcrjsr, CC BY 4.0, from Wikimedia Commons 
Photo: Dcrjsr, CC BY 4.0, from Wikimedia Commons 
Photo: Thayne Tuason, CC BY-SA 4.0, from Wikimedia Commons
More in Epipactis
- Broad-leaved helleborineEpipactis helleborineOrchidaceae
- Marsh helleborineEpipactis palustrisOrchidaceae
- Dark red helleborineEpipactis atrorubensOrchidaceae
- Violet helleborineEpipactis purpurataOrchidaceae
- Small-leaved helleborineEpipactis microphyllaOrchidaceae
- Narrow-lipped helleborineEpipactis leptochilaOrchidaceae
- Müllers´ helleborineEpipactis muelleriOrchidaceae
- Green-flowered helleborineEpipactis phyllanthesOrchidaceae
- Eastern marsh helleborineEpipactis veratrifoliaOrchidaceae
- Epipactis albensisOrchidaceae
- Dune helleborineEpipactis dunensisOrchidaceae
- Epipactis papillosaOrchidaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.