knotroot foxtail USDA PLANTS Symbol: SEPA10
U.S. Nativity: Native
Habit: Grass or Grasslike
Setaria parviflora (Poir.) Kerguélen

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Taxonomic Rank: Liliopsida: Cyperales: Poaceae
Synonym(s): marsh bristlegrass, knotroot bristlegrass, marsh bristle grass, yellow bristlegrass
Native Range: US - Contin., & Mexico, So. Amer. (GRIN);

Selected Images from Invasive.orgView All Images at Invasive.org


Plant(s);
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Feature(s); Collar
John D. Byrd, Mississippi State University, Bugwood.org
Additional Resolutions & Image Usage

Feature(s); Collar
John D. Byrd, Mississippi State University, Bugwood.org
Additional Resolutions & Image Usage

Flower(s); November. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
James H. Miller, USDA Forest Service, Bugwood.org
Additional Resolutions & Image Usage

Flower(s);
Forest and Kim Starr, Starr Environmental, Bugwood.org
Additional Resolutions & Image Usage

Floret(s); Ventral (left) and dorsal (right) view of floret. Similar to an FNW taxon.
Julia Scher, USDA APHIS PPQ, Bugwood.org
Additional Resolutions & Image Usage

Fruit(s); Caryopsis in ventral (left) and dorsal (right) views.
D. Walters and C. Southwick, USDA, Bugwood.org
Additional Resolutions & Image Usage

Spikelet(s); Left to right: Two spikelets in dorsal view showing upper glume and fertile lemma; spikelet in ventral view showing lower glume and sterile lemma; floret in dorsal view; floret in ventral view. Similar to an FNW taxon.
Julia Scher, USDA APHIS PPQ, Bugwood.org
Additional Resolutions & Image Usage

Floret(s); Spikelets in ventral view with glumes and sterile lemma removed to reveal sterile palea atop the fertile floret.
D. Walters and C. Southwick, USDA, 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(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

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U.S. National Parks where reported invasive:
Haleakala National Park (Hawaii)
Manassas National Battlefield Park (Virginia)



Invasive Listing Sources:
Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
University of Hawaii, Botany Department, Hawaiian Alien Plant Studies, 1998