- Epipactis helleborine is a perennial herb in the orchid family that can grow anywhere from 9.8-35.4 in. (25-90 cm) tall.
- Leaves are alternate, clasping, dark green, 1.6-7.1 in. (4-18 cm) long, elliptic to lance shaped, and hairy. Flowering stem is green to purplish and usually short hairy.
- Flowers are 0.79-1.2 in. (2-3 cm) long, open with 3 petals the lowest petal forming a lip, and range in color from green to whitish green or green streaked to completely purple. Blooming occurs late June to August.
- Fruit are capsule that are egg-shaped to ellipsoid, green with brownish lines, up to 0.6 in. (1.5 cm) long, and generally hairy.
- Ecological Threat
- Epipactis helleborine prefers disturbed areas such as along foot trails and roadsides within woodlands.
- Plant Invaders of Mid-Atlantic Natural Areas - National Park Service
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EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org
State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org
Invasive Listing Sources
- EDDMapS Ontario
- Great Lakes Early Detection Network
- Hoffman, R. & K. Kearns, Eds. 1997. Wisconsin manual of control recommendations for ecologically invasive plants. Wisconsin Dept. Natural Resources, Bureau of Endangered Resources. Madison, Wisconsin. 102pp.
- Jil Swearingen, personal communication, 2009-2016
- WeedUS - Database of Plants Invading Natural Areas in the United States
- Wisconsin's Invasive Species Identification, Classification and Control Rule
|Common Name Reference:|| Weed Science Society of America Common Names List|
|Scientific Name Reference:||USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.|