sweet autumn virginsbower
(Clematis terniflora)
This species is Introduced in the United States
Appearance
Clematis terniflora is a climbing, semi-evergreen, ornamental vine.
Foliage
The leaves are opposite, compound (with 3-5 leaflets), and the margins are entire. Leaflets are each 2-3 in. (5-7.6 cm) long.
Flowers
White, fragrant, four-petaled flowers appear in the late summer through the fall.
Fruit
Seeds are also showy and production is prolific. Seed heads have long, silvery-gray, feather-like hairs attached.
Ecological Threat
The native species (C. virginiana) is very similar (margins of leaves of the native tend to be toothed), but not as prone to self-seeding and spreading. Clematis terniflora prefers sun to partial shade and is found invading forest edges, rights of ways and urban green space especially near creeks. It is native to Japan and China and was introduced into the United States as an ornamental plant.
Selected Images
Maps
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 Lists - This map identifies those states that have this species on their invasive species list or law.
Invasive Listing Sources
- Alabama Invasive Plant Council
- Alachua County Cogongrass Initiative
- Delaware Invasive Species Council
- Delaware Invasive Species Council Invasive Species List
- Florida Invasive Plant Council - Plant List - Category II
- Georgia Exotic Pest Plant Council - Category 3
- Indiana Invasive Species Council - Invasive Plant List
- Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
- Kentucky Exotic Pest Plant Council - Severe Threat
- Maine Invasive Plants
- National Park Service, Mid-Atlantic Exotic Plant Management Team Invasive Plant List
- New Hampshire Invasive Species Committee. 2005. Guide to Invasive Upland Plant Species in New Hampshire. New Hampshire Department of Agriculture, Markets and Food Plant Industry Division and New Hampshire Invasive Species Committee.
- New Jersey Invasive Species Strike Team 2017 Invasive Species List
- New York Regulated and Prohibited Invasive Species - Regulated
- Non-Native Invasive Plants of Arlington County, Virginia
- Non-Native Invasive Plants of the City of Alexandria, Virginia
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- Pennsylvania Department of Conservation and Natural Resources Invasive Plants
- Plant Invaders of Mid-Atlantic Natural Areas
- Rhode Island Natural History Survey
- South Carolina Exotic Pest Plant Council
- Tennessee Exotic Pest Plant Council
- Virginia Invasive Plant Species List
- Virginia Master Naturalists Priority Species List
- WeedUS - Database of Plants Invading Natural Areas in the United States
Taxonomic Rank
| Domain: Eukarya |
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Superorder: Ranunculanae |
| Order: Ranunculales |
| Family: Ranunculaceae |
| Genus: Clematis |
| Clematis terniflora |
Synonyms and Other Names
Other Common Names:
leatherleaf clematis, yam-leaved clematis
Related Scientific Names:
Clematis dioscoreifolia DC (Synonym)
Clematis maximowicziana DC (Synonym)
References
Common Name Reference: USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.
Scientific Name Reference: USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.