| spiny amaranth | USDA PLANTS Symbol: AMSP U.S. Nativity: Native Habit: Forbs/Herbs |
| Amaranthus spinosus L |
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Taxonomic Rank: Magnoliopsida: Caryophyllales: Amaranthaceae |
| Synonym(s): pigweed species, spiny amaranthus |
| Native Range: prob. neotropics (GRIN); |
| Selected Images from Invasive.org | View All Images at Invasive.org |
 Plant(s); John D. Byrd, Mississippi State University, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); Chris Evans, University of Illinois, Bugwood.org Additional Resolutions & Image Usage |
 Plant(s); John D. Byrd, Mississippi State University, Bugwood.org Additional Resolutions & Image Usage |
 Foliage; Habit Forest and Kim Starr, Starr Environmental, Bugwood.org Additional Resolutions & Image Usage |
 Stem(s); spines Forest and Kim Starr, Starr Environmental, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); Spines and stem John D. Byrd, Mississippi State University, Bugwood.org Additional Resolutions & Image Usage |
 Feature(s); stem and thorns Joseph M. DiTomaso, University of California - Davis, Bugwood.org Additional Resolutions & Image Usage |
 Flower(s); flowers Forest and Kim Starr, Starr Environmental, Bugwood.org Additional Resolutions & Image Usage |
 Foliage; Habit Forest and Kim Starr, Starr Environmental, Bugwood.org Additional Resolutions & Image Usage |
 Seed(s); Bruce Ackley, The Ohio State University, Bugwood.org Additional Resolutions & Image Usage |
| EDDMapS Distribution: This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org |
 State List This map identifies those states that list this species on their invasive species list or law. 
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| U.S. National Parks where reported invasive: |
| Haleakala National Park (Hawaii) |
| Invasive Listing Sources: |
| Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007 |
| WeedUS - Database of Plants Invading Natural Areas in the United States |
