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Epipactis gigantea Douglas ex Hooker. Common name: Giant Helleborine. Phenology: Mar-Aug. Habitat: Wooded streambanks, limestone seepages and springs. Distribution: SD, MT and BC south to e. TX, NM, AZ, CA, and Mexico.

Origin/Endemic status: Native

Synonymy ⓘ: = Can, ETx1, FNA26, K4, NcTx, NS, POWO, Tx, Correll (1950); = Serapias gigantea (Douglas ex Hook.) A.A.Eaton — S13. Basionym: Epipactis gigantea Douglas ex Hook. 1839

Links to other floras: = Epipactis gigantea - FNA26

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL
  • Great Plains: OBL

Heliophily ⓘ: 7

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image of plant© Alan Cressler: Epipactis gigantea, Dripping Alcove, Straight Canyon, Manti-LaSal National Forest, Emery County, Utah 1 by Alan Cressler source
image of plant© Michelle Wong, some rights reserved (CC BY), uploaded by Michelle W. source CC-BY | Original Image ⭷
image of plant© Michelle Wong, some rights reserved (CC BY), uploaded by Michelle W. source CC-BY | Original Image ⭷
image of plant© Alan Cressler: Epipactis gigantea, and Adiantum capillus-veneris, Kane Springs Canyon Springs, Grand County, Utah 2 by Alan Cressler source
image of plant© Tara Rose Littlefield, some rights reserved (CC BY-NC), uploaded by Tara Rose Littlefield source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Alan Cressler: Epipactis gigantea, and Adiantum capillus-veneris, Kane Springs Canyon Springs, Grand County, Utah 1 by Alan Cressler source
image of plant© Tara Rose Littlefield, some rights reserved (CC BY-NC), uploaded by Tara Rose Littlefield source CC-BY-NC, permission granted to NCBG | Original Image ⭷

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Horticultural Information

No horticultural data found for this taxon.