| brittleleaf naiad |
USDA PLANTS Symbol: NAMI USDA ARS GRIN: 416233 ITIS: 39002 NAPIS: PDJABBE |
| Najas minor All. | |
|
Taxonomic Rank: Liliopsida: Najadales: Najadaceae |
|
| Synonym(s): brittle waternymph, brittleleaf naiad, European naiad, spinyleaf naiad, slender-leaved naiad | |
Brittleleaf naiad is an annual forb that is native to Europe. The highly branched stems can grow up to 4 ft. (1.2 m) in length and fragment easily, hence the common name. Leaves are opposite, linear, approximately 1 in. (2.5 cm) in length with prominent teeth along the margins. Flowering occurs in late spring to early summer, when small flowers develop in the axils of the leaves. Fruit are single-seeded. Germination of the seeds occurs in early spring. Brittleleaf naiad can be confused with coon's tail (Ceratophyllum spp.), but can be distinguished by the leaf arrangement. The leaves of coon's tail are arranged in whorls of 4 or 5, instead of the opposite arrangement of brittleleaf naiad. This invasive was first collected in the United States in the 1930s. |
|
Identification, Biology, Control and Management Resources
- Invasive Plant Atlas of New England - University of Connecticut
| Selected Images from Invasive.org | View All Images at Invasive.org |
 Plant(s); Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Troy Evans, Eastern Kentucky University, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Leslie J. Mehrhoff, University of Connecticut, Bugwood.org Additional Resolutions & Image Usage |
 Diagram or Graphic; USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. USDA PLANTS Database, USDA NRCS PLANTS Database, 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:
- Connecticut Invasive Plant Working Group
- Faith Campbell, 1998. Plants that Hog the Garden: Invasive Plants in the United States. Fine Gardening Online
- 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.
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- Vermont Department of Environmental Conservation,
- WeedUS - Database of Plants Invading Natural Areas in the United States
- Alabama Noxious Weeds Class C Noxious Weed
- Connecticut Noxious Weeds
- Georgia Exotic Pest Plant Council Category 4
- Massachusetts Noxious Weeds
- Maine Noxious Weeds
- South Carolina Noxious Weeds
- Tennessee Exotic Pest Plant Council Watch List A
- Washington Noxious Weeds
Partners
