- Ficaria verna is a short (up to 12 in. [30.5 cm]), herbaceous perennial that invades forests throughout the East, Midwest and Pacific Northwest regions of the United States.
- The basal leaves are dark green, shiny, kidney- to heart-shaped and vary greatly in size.
- Flowering occurs in March and April, when showy, bright yellow, eight-petaled flowers develop on stalks above the leaves. Flowers are up to 3 in. (7.6 cm) wide.
- The fruit are achenes that are pubescent. It also reproduces with bulblets and tubers.
- Ecological Threat
- Ficaria verna invades moist, forested floodplains. It is a spring ephemeral and grows vigorously, creating dense mats that exclude all other vegetation. It is a threat particularly to the native forest spring ephemerals that have to compete for light and space with this invasive. The plant is native to Europe and was first introduced into the United States as an ornamental. It is currently sold and widely planted as an ornamental.
- Weeds Gone Wild: Alien Plant Invaders of Natural Areas - Plant Conservation Alliance
- Invasive Plant Atlas of New England - University of Connecticut
- Weed of the Week - USDA Forest Service
- Plant Invaders of Mid-Atlantic Natural Areas - National Park Service and U.S. Fish and Wildlife 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
- Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, 1994.
- Connecticut Invasive Plant List
- Connecticut Invasive Plant Working Group
- Delaware Natural Resources and Environmental Control, 2004
- Faith Campbell, 1998
- 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
- Maryland Cooperative Extension Service. 2003. Invasive Plant Control in Maryland. Home and Garden Information Center, Home and Garden Mimeo HG88. 4 pp.
- Maryland Department of Natural Resources, 1994
- Massachusetts Noxious Weeds
- Mid-Atlantic Exotic Pest Plant Council, 2005
- Native Plant Society of Oregon, 2008
- New Jersey Department of Agriculture, Division of Plant Industry, 2004
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- Pennypack Ecological Restoration Trust, Pennsylvania.
- Tatyana Livschultz, Pennsylvania survey of invasive plants,
- Virginia Invasive Plant Species List
- Washington Noxious Weeds
- WeedUS - Database of Plants Invading Natural Areas in the United States