ITP Logo

Gallery

Family

Genus

Common name

Noxious Weed Seed

AOSA Examination List

Species Category

Disseminule/Planting Unit

Shape

Seed length

Seed width

Seed thickness

Color

Texture

Other structures

 

per page:

page:
of 59     


Scorzonera hispanica. Achenes with dominant longitudinal ribs. Scorzonera hispanica. Achenes with dominant longitudinal ribs.
Scorzonera hispanica
Scorzonera hispanica. Achenes with dominant longitudinal ribs.
Scutellaria baicalensis. Moderately compressed nutlets. Scutellaria baicalensis. Moderately compressed nutlets.
Scutellaria baicalensis
Scutellaria baicalensis. Moderately compressed nutlets.
Scutellaria lateriflora. Nutlets with a nutlet attachment that is in the middle of one side. Scutellaria lateriflora. Nutlets with a nutlet attachment that is in the middle of one side.
Scutellaria lateriflora
Scutellaria lateriflora. Nutlets with a nutlet attachment that is in the middle of one side.
Secale cereale. Caryopses with a pointed embryo that's one-third of the caryopsis length.  Secale cereale. Caryopses with a pointed embryo that's one-third of the caryopsis length. 
Secale cereale
Secale cereale. Caryopses with a pointed embryo that's one-third of the caryopsis length. 

Securigera varia. True seeds that are sometimes encased in a segment of the pod (fruit coat). Photo courtesy of Colorado State University, Department of Soil and Crop Sciences. Securigera varia. True seeds that are sometimes encased in a segment of the pod (fruit coat). Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Securigera varia
Securigera varia. True seeds that are sometimes encased in a segment of the pod (fruit coat). Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Senecio atratus. Achenes with circumferential constriction below the pappus crown and above the base.  Senecio atratus. Achenes with circumferential constriction below the pappus crown and above the base. 
Senecio atratus
Senecio atratus. Achenes with circumferential constriction below the pappus crown and above the base. 
Senecio jacobaea. Light brown achenes with short, appressed hairs on the ribs. Senecio jacobaea. Light brown achenes with short, appressed hairs on the ribs.
Senecio jacobaea
Senecio jacobaea. Light brown achenes with short, appressed hairs on the ribs.
Senecio jacobaea. Light brown achenes with thick longitudinal ribs, a distinct apical collar, and a wide scar.  Senecio jacobaea. Light brown achenes with thick longitudinal ribs, a distinct apical collar, and a wide scar. 
Senecio jacobaea
Senecio jacobaea. Light brown achenes with thick longitudinal ribs, a distinct apical collar, and a wide scar. 

Senna armata. True seeds with a strong groove from the base to the apex.  Senna armata. True seeds with a strong groove from the base to the apex. 
Senna armata
Senna armata. True seeds with a strong groove from the base to the apex. 
Senna armata. True seeds that are coarsely folded and bent. Senna armata. True seeds that are coarsely folded and bent.
Senna armata
Senna armata. True seeds that are coarsely folded and bent.
Senna artemisioides. True seed with an elongate hilum near the center of one side. Senna artemisioides. True seed with an elongate hilum near the center of one side.
Senna artemisioides
Senna artemisioides. True seed with an elongate hilum near the center of one side.
Senna covesii. True seeds with large, irregular wrinkles on a shiny surface and a rounded hilum.  Senna covesii. True seeds with large, irregular wrinkles on a shiny surface and a rounded hilum. 
Senna covesii
Senna covesii. True seeds with large, irregular wrinkles on a shiny surface and a rounded hilum. 

Senna covesii. True seeds with large, irregular wrinkles on a shiny surface.  Senna covesii. True seeds with large, irregular wrinkles on a shiny surface. 
Senna covesii
Senna covesii. True seeds with large, irregular wrinkles on a shiny surface. 
Senna obtusifolia. True seeds with opposite sides that are parallel, but the corners are not right angles (parallelogram). Photo courtesy of Colorado State University, Department of Soil and Crop Sciences. Senna obtusifolia. True seeds with opposite sides that are parallel, but the corners are not right angles (parallelogram). Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Senna obtusifolia
Senna obtusifolia. True seeds with opposite sides that are parallel, but the corners are not right angles (parallelogram). Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Senna tora. Brown true seed with a light brown diagonal band. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences. Senna tora. Brown true seed with a light brown diagonal band. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Senna tora
Senna tora. Brown true seed with a light brown diagonal band. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Sesamum indicum. True seeds that are light brown with dark veins and a knob on the hilum. Sesamum indicum. True seeds that are light brown with dark veins and a knob on the hilum.
Sesamum orientale
Sesamum indicum. True seeds that are light brown with dark veins and a knob on the hilum.

Sesbania herbacea. True seeds that have a small, circular hilum midway on the long axis. Photo by Jim Burce, Colorado State University, Department of Soil and Crop Sciences, 2003. Sesbania herbacea. True seeds that have a small, circular hilum midway on the long axis. Photo by Jim Burce, Colorado State University, Department of Soil and Crop Sciences, 2003.
Sesbania herbacea
Sesbania herbacea. True seeds that have a small, circular hilum midway on the long axis. Photo by Jim Burce, Colorado State University, Department of Soil and Crop Sciences, 2003.
Setaria faberi. Florets with smooth palea edges. Setaria faberi. Florets with smooth palea edges.
Setaria faberi
Setaria faberi. Florets with smooth palea edges.
From Left to Right:  1. Setaria pumila ssp. pumila  2. Setaria faberi 3. Setaria viridis 4. Setaria italica.  From Left to Right:  1. Setaria pumila ssp. pumila 2. Setaria faberi 3. Setaria viridis 4. Setaria italica. 
Setaria faberi
From Left to Right:  1. Setaria pumila ssp. pumila 2. Setaria faberi 3. Setaria viridis 4. Setaria italica. 
From Left to Right:  1. Setaria pumila ssp. pumila  2. Setaria faberi 3. Setaria viridis 4. Setaria italica.  From Left to Right:  1. Setaria pumila ssp. pumila 2. Setaria faberi 3. Setaria viridis 4. Setaria italica. 
Setaria italica
From Left to Right:  1. Setaria pumila ssp. pumila 2. Setaria faberi 3. Setaria viridis 4. Setaria italica. 

Setaria italica. Yellow to dark brown florets. Setaria italica. Yellow to dark brown florets.
Setaria italica
Setaria italica. Yellow to dark brown florets.
Setaria leucopila. Florets with three glumes, one of which is sterile. Setaria leucopila. Florets with three glumes, one of which is sterile.
Setaria leucopila
Setaria leucopila. Florets with three glumes, one of which is sterile.
Setaria leucopila . Florets are often covered by papery glumes, forming a spikelet. Setaria leucopila. Florets are often covered by papery glumes, forming a spikelet.
Setaria leucopila
Setaria leucopila. Florets are often covered by papery glumes, forming a spikelet.
Setaria parviflora. Florets with the second glume are three-fourths the length of the lemma.  Setaria parviflora. Florets with the second glume are three-fourths the length of the lemma. 
Setaria parviflora
Setaria parviflora. Florets with the second glume are three-fourths the length of the lemma. 

Setaria parviflora. Florets often with papery glumes. Photo by Julia Scher, USDA-APHIS-PPQ. Setaria parviflora. Florets often with papery glumes. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria parviflora
Setaria parviflora. Florets often with papery glumes. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria parviflora. Florets with the edges of the palea being covered by the lemma. Photo by Julia Scher, USDA-APHIS-PPQ. Setaria parviflora. Florets with the edges of the palea being covered by the lemma. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria parviflora
Setaria parviflora. Florets with the edges of the palea being covered by the lemma. Photo by Julia Scher, USDA-APHIS-PPQ.
From Left to Right: 1. Setaria pumila ssp. pumila  2. Setaria faberi 3. Setaria viridis 4. Setaria italica . Florets that are uniformly covered by transverse ridges.  From Left to Right: 1. Setaria pumila ssp. pumila 2. Setaria faberi 3. Setaria viridis 4. Setaria italica. Florets that are uniformly covered by transverse ridges. 
Setaria pumila subsp. pumila
From Left to Right: 1. Setaria pumila ssp. pumila 2. Setaria faberi 3. Setaria viridis 4. Setaria italica. Florets that are uniformly covered by transverse ridges. 
Setaria pumila ssp. pumila.  Florets with Glumes present, second glume half the length of the lemma. Photo by Julia Scher, USDA-APHIS-PPQ. Setaria pumila ssp. pumila. Florets with Glumes present, second glume half the length of the lemma. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria pumila subsp. pumila
Setaria pumila ssp. pumila. Florets with Glumes present, second glume half the length of the lemma. Photo by Julia Scher, USDA-APHIS-PPQ.

Setaria pumila ssp. pumila.  Florets that are uniformly covered by transverse ridges. Photo by Julia Scher, USDA-APHIS-PPQ. Setaria pumila ssp. pumila. Florets that are uniformly covered by transverse ridges. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria pumila subsp. pumila
Setaria pumila ssp. pumila. Florets that are uniformly covered by transverse ridges. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria pumila ssp. pumila.  Florets with Glumes present, second glume half the length of the lemma. Photo by Julia Scher, USDA-APHIS-PPQ. Setaria pumila ssp. pumila. Florets with Glumes present, second glume half the length of the lemma. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria pumila subsp. pumila
Setaria pumila ssp. pumila. Florets with Glumes present, second glume half the length of the lemma. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria pumila ssp. pumila.  Florets that are uniformly covered by transverse ridges.  Setaria pumila ssp. pumila. Florets that are uniformly covered by transverse ridges. 
Setaria pumila subsp. pumila
Setaria pumila ssp. pumila. Florets that are uniformly covered by transverse ridges. 
Setaria pumila  ssp. pallidefusca. Florets with the lemma and palea surfaces uniformly covered with rows of stipples. Photo by Julia Scher, USDA-APHIS-PPQ. Setaria pumila ssp. pallidefusca. Florets with the lemma and palea surfaces uniformly covered with rows of stipples. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria pumila subsp. pallidefusca
Setaria pumila ssp. pallidefusca. Florets with the lemma and palea surfaces uniformly covered with rows of stipples. Photo by Julia Scher, USDA-APHIS-PPQ.

Setaria pumila  ssp. pallidefusca.  Florets with the lemma and palea surfaces uniformly covered with rows of stipples. Photo by Julia Scher, USDA-APHIS-PPQ. Setaria pumila ssp. pallidefusca. Florets with the lemma and palea surfaces uniformly covered with rows of stipples. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria pumila subsp. pallidefusca
Setaria pumila ssp. pallidefusca. Florets with the lemma and palea surfaces uniformly covered with rows of stipples. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria pumila  ssp. pallidefusca. Florets are often covered with papery glumes.Photo by Julia Scher, USDA-APHIS-PPQ. Setaria pumila ssp. pallidefusca. Florets are often covered with papery glumes.Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria pumila subsp. pallidefusca
Setaria pumila ssp. pallidefusca. Florets are often covered with papery glumes.Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria pumila  ssp. pallidefusca. Florets with shiny margins of the palea that are covered by the lemma. Photo by Julia Scher, USDA-APHIS-PPQ. Setaria pumila ssp. pallidefusca. Florets with shiny margins of the palea that are covered by the lemma. Photo by Julia Scher, USDA-APHIS-PPQ.
Setaria pumila subsp. pallidefusca
Setaria pumila ssp. pallidefusca. Florets with shiny margins of the palea that are covered by the lemma. Photo by Julia Scher, USDA-APHIS-PPQ.
From Left to Right:  1. Setaria pumila ssp. pumila  2. Setaria faberi 3. Setaria viridis 4. Setaria italica.  From Left to Right:  1. Setaria pumila ssp. pumila 2. Setaria faberi 3. Setaria viridis 4. Setaria italica. 
Setaria viridis
From Left to Right:  1. Setaria pumila ssp. pumila 2. Setaria faberi 3. Setaria viridis 4. Setaria italica. 

Setaria viridis. Florets with a full-length second glume and shiny palea edges. Setaria viridis. Florets with a full-length second glume and shiny palea edges.
Setaria viridis
Setaria viridis. Florets with a full-length second glume and shiny palea edges.
Sherardia arvensis. Mericarps with appressed hairs on the achene and spines. Sherardia arvensis. Mericarps with appressed hairs on the achene and spines.
Sherardia arvensis
Sherardia arvensis. Mericarps with appressed hairs on the achene and spines.
Sherardia sp. Mericarps with three glabrous flat spines at the apex.  Sherardia sp. Mericarps with three glabrous flat spines at the apex. 
Sherardia sp.
Sherardia sp. Mericarps with three glabrous flat spines at the apex. 
Sicyos angulatus . True seeds that are smooth with occasional fruit coat remnants, which are very rough. Sicyos angulatus. True seeds that are smooth with occasional fruit coat remnants, which are very rough.
Sicyos angulatus
Sicyos angulatus. True seeds that are smooth with occasional fruit coat remnants, which are very rough.