| sessile joyweed |
USDA PLANTS Symbol: ALSE4 USDA ARS GRIN: 2713 ITIS: 20773 NAPIS: PAFABBD |
| Alternanthera sessilis (L.) R. Br. ex DC. | |
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Taxonomic Rank: Magnoliopsida: Caryophyllales: Amaranthaceae |
Identification, Biology, Control and Management Resources
- Federal Noxious Weed Disseminules of the U.S. - USDA-APHIS
- Pacific Island Ecosystems at Risk - USDA Forest Service
| Selected Images from Invasive.org | View All Images at Invasive.org |
 Seed(s); Our descriptive literature says that A. sessilis is unique for the genus in that the tepals (perianth segments) are shorter than (rarely barely as long as) the heart-shaped, one-seeded fruit. This picture shows tepals which exceed the fruit in length. USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org Additional Resolutions & Image Usage |
Taxonomic References:
- USDA, NRCS. 2001. The PLANTS Database, Version 3.1, National Plant Data Center, Baton Rouge, LA 70874-4490 USA.
Invasive Listing Sources:
- Federal Noxious Weeds
- Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- USDA APHIS Regulated Pest List
- WeedUS - Database of Plants Invading Natural Areas in the United States
- California Noxious Weeds
- Florida Noxious Weeds
- Georgia Exotic Pest Plant Council Category 3
- Massachusetts Noxious Weeds
- Minnesota Noxious Weeds
- North Carolina Noxious Weeds Class A
- Oregon Noxious Weeds
- South Carolina Noxious Weeds
- Vermont Noxious Weeds
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