tawny daylily USDA PLANTS Symbol: HEFU
U.S. Nativity: Exotic
Habit: Forbs/Herbs
Hemerocallis fulva (L.) L.

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Taxonomic Rank: Liliopsida: Liliales: Liliaceae
Synonym(s): orange daylily, tawny daylily, common daylily
Native Range: Europe, Asia (BAIL);

Appearance
Hemerocallis fulva is a bulbous perennial, 2-4 ft. (0.6-1.2 m) tall with round stems. Buds and flowers are edible and have a sweet-spicy or peppery flavor.
Foliage
Leaves are long, linear, strap-like, bright-green, 1-3 ft. (0.3-1 m) long and curve toward the ground.
Flowers
Flowers are large, showy, orange, usually with some striping; occur in clusters of 5-9 at the tip of the stalk; flowers in a cluster open one at a time, each for one day only; summer.
Fruit
Spreads by growth from thick, tuberous roots from which new plants are produced; seed; people tossing away whole pulled plants and by farm equipment or other machinery in fields.
Ecological Threat
Hemerocallis fulva established in natural areas pose a threat to native plants in field, meadows, floodplains, moist woods and forest edges. Once established, this plant multiplies and spreads to form dense patches that displace native plants. The thick tubers make it a challenge to control. Common or orange daylily was introduced into the United States in the late 19th century as an ornamental.

Identification, Biology, Control and Management Resources

Selected Images from Invasive.orgView All Images at Invasive.org


Plant(s);
Britt Slattery, US Fish and Wildlife Service, Bugwood.org
Additional Resolutions & Image Usage

Foliage;
Theodore Webster, USDA Agricultural Research Service, Bugwood.org
Additional Resolutions & Image Usage

Plant(s); base of plant.
Theodore Webster, USDA Agricultural Research Service, Bugwood.org
Additional Resolutions & Image Usage

Plant(s); base of plant
Ohio State Weed Lab , The Ohio State University, Bugwood.org
Additional Resolutions & Image Usage

Stem(s); Stem and bract
Dan Tenaglia, Missouriplants.com, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
Dan Tenaglia, Missouriplants.com, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
Ricky Layson, Ricky Layson Photography, Bugwood.org
Additional Resolutions & Image Usage

Flower(s); Stamens close-up
Dan Tenaglia, Missouriplants.com, Bugwood.org
Additional Resolutions & Image Usage

Fruit(s); fruits and seeds
Ken Chamberlain, The Ohio State University, Bugwood.org
Additional Resolutions & Image Usage

EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

U.S. National Parks where reported invasive:
Antietam National Battlefield (Maryland)
Harpers Ferry National Historical Park (West Virginia)
Monocacy National Battlefield Park (Maryland)
National Capital Parks East (Washington, D.C.)
Rock Creek National Park (Washington, D.C.)



Invasive Listing Sources:
City of Ann Arbor Michigan Parks and Recreation
Delaware Natural Resources and Environmental Control, 2004
Eric Ulaszek, U.S. Forest Service, Midewin National Tallgrass Prairie, Illinois
Faith Campbell, 1998
Georgia Exotic Pest Plant Council
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 M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
Kentucky Exotic Pest Plant Council
Maryland Department of Natural Resources, 1994
Mid-Atlantic Exotic Pest Plant Council, 2005
Pennypack Ecological Restoration Trust, Pennsylvania.