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Bransford, W.D. and Dolphia
Epipactis gigantea Douglas ex Hook.
Chatterbox Orchid, Giant Hellebore, Stream orchid
USDA Symbol: EPGI
USDA Native Status: L48 (N), CAN (N)
Leafy stems usually growing in dense patches and in the axils of each upper leaf 1 bilaterally symmetrical greenish-brown and pinkish flower.
The lower lip and tongue move when the flower is touched or shaken; thus giving it the alternate name Chatterbox.
Plant CharacteristicsDuration: Perennial Habit: Herb Leaf Complexity: Simple Flower:
Fruit: Size Class:
Bloom InformationBloom Color: Pink , Orange , Yellow , Green , Purple , Brown
Bloom Time: Apr , May , Jun , Jul
, WY Canada: BC Native Distribution:
British Columbia to Mexico; from the Pacific Coast east to the Rocky Mountains and the Black Hills. Native Habitat:
Ledges, Stream, river banks
Growing ConditionsWater Use: Medium
Light Requirement: Part Shade , Shade
Soil Moisture: Moist , Wet
Soil pH: Alkaline (pH>7.2)
CaCO3 Tolerance: High
Soil Description: Sandy, Sandy Loam Medium Loam, Clay Loam, Clay, Limestone-based, Calcareous
BenefitUse Ornamental: Water garden, Bog or pond area
Conspicuous Flowers: yes
Fragrant Flowers: yes
Deer Resistant: High
PropagationPropagation Material: Root Division
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Oregon Native Plant Nursery
- Woodburn, OR
Record Last Modified: 2007-01-01
Research By: NPC