common St. Johnswort
Hypericum perforatum L.
Resources
- Fire Effects Information System - USDA Forest Service
Representative Images(View more at Forestry Images)
 0023009 common St. Johnswort Hypericum perforatum Flower(s) Norman E. Rees |
 1559301 common St. Johnswort Hypericum perforatum Feature(s) Ohio State Weed Lab |
 1459528 common St. Johnswort Hypericum perforatum Fruit(s) Steve Dewey |
 2187026 common St. Johnswort Hypericum perforatum Flower(s) David Cappaert |
 1196114 common St. Johnswort Hypericum perforatum Flower(s) Jamie Nielsen |
 1459525 common St. Johnswort Hypericum perforatum Flower(s) Steve Dewey |
 0024070 common St. Johnswort Hypericum perforatum Plant(s) Norman E. Rees |
 0025053 common St. Johnswort Hypericum perforatum Infestation Norman E. Rees |
 1459526 common St. Johnswort Hypericum perforatum Flower(s) Steve Dewey |
 1624011 common St. Johnswort Hypericum perforatum Plant(s) Carol DiSalvo |
 1459529 common St. Johnswort Hypericum perforatum Root(s) Steve Dewey |
 5307061 common St. Johnswort Hypericum perforatum Plant(s) USDA NRCS PLANTS Database |
 5307062 common St. Johnswort Hypericum perforatum Seed(s) Steve Hurst |
Invasive Listing Sources
- Alberta Weed Control Act
- California Invasive Plant Council
- City of Ann Arbor Michigan Parks and Recreation
- Colorado Noxious Weeds
- 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.
- Indiana Invasive Species Council - Invasive Plant List
- Invasive Plant Association of Wisconsin
- Invasive Plant Species of West Virginia
- 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 - Moderate Threat
- Montana Noxious Weeds
- National Park Service, Mid-Atlantic Exotic Plant Management Team Invasive Plant List
- National Park Service, National Capital Region Exotic Plant Management Team Invasive Plant List
- Native Plant Society of Oregon, 2008
- Nevada Noxious Weeds
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- Ontario’s Invading Species Awareness Program Tracked Species List
- Oregon Noxious Weeds
- Pacific Northwest Exotic Pest Plant Council, 1998
- Utah Noxious Weeds - Early Detection
- Washington Noxious Weeds
- WeedUS - Database of Plants Invading Natural Areas in the United States
- West Virginia Invasive Species Strategic Plan and Volunteer Guidelines 2014
- West Virginia Native Plant Society, Flora West Virginia Project, and West Virginia Curatorial Database System, September 3, 1999
- Wyoming Noxious Weeds
Taxonomic Rank
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Order: Malpighiales |
| Family: Hypericaceae |
| Genus: Hypericum |
Other System Links
Plants: HYPEBayer: HYPPE
GRIN: 19600
ITIS: 21454
NPDN Pest: PCBABBA
NPDN Host: 36404
Synonyms and Other Names
Other Common Names:
Klamathweed, St. John's wort
| 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. |
