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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

 

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Saccharum officinarum. Spikelets with a rachis segment and pedicel present. Photo by Julia Scher, USDA-APHIS-PPQ. Saccharum officinarum. Spikelets with a rachis segment and pedicel present. Photo by Julia Scher, USDA-APHIS-PPQ.
Saccharum officinarum
Saccharum officinarum. Spikelets with a rachis segment and pedicel present. Photo by Julia Scher, USDA-APHIS-PPQ.
Saccharum spontaneum. Spikelets with a rachis segment and pedicel present. Photo by Julia Scher, USDA-APHIS-PPQ. Saccharum spontaneum. Spikelets with a rachis segment and pedicel present. Photo by Julia Scher, USDA-APHIS-PPQ.
Saccharum spontaneum
Saccharum spontaneum. Spikelets with a rachis segment and pedicel present. Photo by Julia Scher, USDA-APHIS-PPQ.
Saccharum spontaneum. Spikelets with many long silky hairs attached to the unit base. Photo by Julia Scher, USDA-APHIS-PPQ. Saccharum spontaneum. Spikelets with many long silky hairs attached to the unit base. Photo by Julia Scher, USDA-APHIS-PPQ.
Saccharum spontaneum
Saccharum spontaneum. Spikelets with many long silky hairs attached to the unit base. Photo by Julia Scher, USDA-APHIS-PPQ.
Saccharum spontaneum. Spikelets with many long silky hairs attached to the unit base. Photo by Julia Scher, USDA-APHIS-PPQ. Saccharum spontaneum. Spikelets with many long silky hairs attached to the unit base. Photo by Julia Scher, USDA-APHIS-PPQ.
Saccharum spontaneum
Saccharum spontaneum. Spikelets with many long silky hairs attached to the unit base. Photo by Julia Scher, USDA-APHIS-PPQ.

Saccharum spontaneum. Spikelets with a rachis segment and pedicel present. Photo by Julia Scher, USDA-APHIS-PPQ. Saccharum spontaneum. Spikelets with a rachis segment and pedicel present. Photo by Julia Scher, USDA-APHIS-PPQ.
Saccharum spontaneum
Saccharum spontaneum. Spikelets with a rachis segment and pedicel present. Photo by Julia Scher, USDA-APHIS-PPQ.
Sagittaria cuneata. Achenes with a striate center and the lateral wings are covered with rows of small stipples. Sagittaria cuneata. Achenes with a striate center and the lateral wings are covered with rows of small stipples.
Sagittaria cuneata
Sagittaria cuneata. Achenes with a striate center and the lateral wings are covered with rows of small stipples.
Sagittaria montevidensis. Achenes with marginal wings and a longitudinal groove on each side. Photo by Julia Scher, USDA-APHIS-PPQ. Sagittaria montevidensis. Achenes with marginal wings and a longitudinal groove on each side. Photo by Julia Scher, USDA-APHIS-PPQ.
Sagittaria montevidensis
Sagittaria montevidensis. Achenes with marginal wings and a longitudinal groove on each side. Photo by Julia Scher, USDA-APHIS-PPQ.
Sagittaria sagitifolia.  Ovate achene with a hooked spike on the apex. Sagittaria sagitifolia. Ovate achene with a hooked spike on the apex.
Sagittaria sagittifolia
Sagittaria sagitifolia. Ovate achene with a hooked spike on the apex.

Sagittaria sagitifolia.  Achenes with a longitudinal groove on each side. Sagittaria sagitifolia. Achenes with a longitudinal groove on each side.
Sagittaria sagittifolia
Sagittaria sagitifolia. Achenes with a longitudinal groove on each side.
Sagittaria sagitifolia.  Achene with a longitudinal groove on each side. Photo by Julia Scher, USDA-APHIS-PPQ. Sagittaria sagitifolia. Achene with a longitudinal groove on each side. Photo by Julia Scher, USDA-APHIS-PPQ.
Sagittaria sagittifolia
Sagittaria sagitifolia. Achene with a longitudinal groove on each side. Photo by Julia Scher, USDA-APHIS-PPQ.
Sagittaria sagitifolia.  Achenes with large marginal wings. Photo by Julia Scher, USDA-APHIS-PPQ. Sagittaria sagitifolia. Achenes with large marginal wings. Photo by Julia Scher, USDA-APHIS-PPQ.
Sagittaria sagittifolia
Sagittaria sagitifolia. Achenes with large marginal wings. Photo by Julia Scher, USDA-APHIS-PPQ.
Salpiglossis sinuata. True seeds with occasional rows of granular ribs that radiate out from the hilum. Salpiglossis sinuata. True seeds with occasional rows of granular ribs that radiate out from the hilum.
Salpiglossis sinuata
Salpiglossis sinuata. True seeds with occasional rows of granular ribs that radiate out from the hilum.

From Left to Right: 1. and 2. Salsola collina 3. and 4. Salsola tragus . Stems. From Left to Right: 1. and 2. Salsola collina 3. and 4. Salsola tragus. Stems.
Salsola collina
From Left to Right: 1. and 2. Salsola collina 3. and 4. Salsola tragus. Stems.
Salsola collina. True seeds with sepals with membranous extensions.  Salsola collina. True seeds with sepals with membranous extensions. 
Salsola collina
Salsola collina. True seeds with sepals with membranous extensions. 
Salsola tragus . Photo by Julia Scher, USDA-APHIS-PPQ. Salsola tragus. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola kali
Salsola tragus. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola tragus . Photo by Julia Scher, USDA-APHIS-PPQ. Salsola tragus. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola kali
Salsola tragus. Photo by Julia Scher, USDA-APHIS-PPQ.

Salsola paulsenii. Samara with yellow transparent sepal lobes. Salsola paulsenii. Samara with yellow transparent sepal lobes.
Salsola paulsenii
Salsola paulsenii. Samara with yellow transparent sepal lobes.
From Left to Right: 1. and 2. Salsola collina 3. and 4. Salsola tragus . Stems. From Left to Right: 1. and 2. Salsola collina 3. and 4. Salsola tragus. Stems.
Salsola tragus
From Left to Right: 1. and 2. Salsola collina 3. and 4. Salsola tragus. Stems.
Salsola tragus. Semi-glossy true seeds with dull and membranous sepals. Salsola tragus. Semi-glossy true seeds with dull and membranous sepals.
Salsola tragus
Salsola tragus. Semi-glossy true seeds with dull and membranous sepals.
Salsola vermiculata. True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ. Salsola vermiculata. True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola vermiculata
Salsola vermiculata. True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ.

Salsola vermiculata. True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ. Salsola vermiculata. True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola vermiculata
Salsola vermiculata. True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola vermiculata. True seeds with a visible embryo coil when sepals aren't present. Photo by Julia Scher, USDA-APHIS-PPQ. Salsola vermiculata. True seeds with a visible embryo coil when sepals aren't present. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola vermiculata
Salsola vermiculata. True seeds with a visible embryo coil when sepals aren't present. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola vermiculata. True seeds with a visible embryo coil when sepals aren't present. Photo by Julia Scher, USDA-APHIS-PPQ. Salsola vermiculata. True seeds with a visible embryo coil when sepals aren't present. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola vermiculata
Salsola vermiculata. True seeds with a visible embryo coil when sepals aren't present. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola vermiculata . True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ. Salsola vermiculata. True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola vermiculata
Salsola vermiculata. True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ.

Salsola vermiculata. True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ. Salsola vermiculata. True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ.
Salsola vermiculata
Salsola vermiculata. True seeds with transparent sepal wings with brown flecks. Photo by Julia Scher, USDA-APHIS-PPQ.
Salvia ×sylvestris. Rough and granular nutlets. Salvia ×sylvestris. Rough and granular nutlets.
Salvia ×sylvestris
Salvia ×sylvestris. Rough and granular nutlets.
Salvia aethiopis. Nutlets with a ridge between the flat surfaces that is marked with a dark brown line. The apical ends of the flat surfaces and the curved dorsal side are marked with a network of dark brown veins.  Salvia aethiopis. Nutlets with a ridge between the flat surfaces that is marked with a dark brown line. The apical ends of the flat surfaces and the curved dorsal side are marked with a network of dark brown veins. 
Salvia aethiopis
Salvia aethiopis. Nutlets with a ridge between the flat surfaces that is marked with a dark brown line. The apical ends of the flat surfaces and the curved dorsal side are marked with a network of dark brown veins. 
Salvia apiana . Nutlets with black stipples. Salvia apiana. Nutlets with black stipples.
Salvia apiana
Salvia apiana. Nutlets with black stipples.

Salvia apiana. Brown nutlets with black reticulations. Salvia apiana. Brown nutlets with black reticulations.
Salvia apiana
Salvia apiana. Brown nutlets with black reticulations.
Salvia azurea. Nutlets with a rounded dorsal side. Salvia azurea. Nutlets with a rounded dorsal side.
Salvia azurea
Salvia azurea. Nutlets with a rounded dorsal side.
Salvia azurea. Nutlets with a hilum at the base. Salvia azurea. Nutlets with a hilum at the base.
Salvia azurea
Salvia azurea. Nutlets with a hilum at the base.
From Left to Right: 1. Salvia azurea var. grandiflora 2. Dracocephalum parviflorum 3. Salvia reflexa 4 . Nepeta cataria 5. Monarda punctata 6. Mentha arvensis . Nutlets with only one scar between the two flat surfaces. From Left to Right: 1. Salvia azurea var. grandiflora 2. Dracocephalum parviflorum 3. Salvia reflexa 4. Nepeta cataria 5. Monarda punctata 6. Mentha arvensis. Nutlets with only one scar between the two flat surfaces.
Salvia azurea var. grandiflora
From Left to Right: 1. Salvia azurea var. grandiflora 2. Dracocephalum parviflorum 3. Salvia reflexa 4. Nepeta cataria 5. Monarda punctata 6. Mentha arvensis. Nutlets with only one scar between the two flat surfaces.

Salvia carduacea. Nutlets that are gray with black mottling. Salvia carduacea. Nutlets that are gray with black mottling.
Salvia carduacea
Salvia carduacea. Nutlets that are gray with black mottling.
Salvia clevelandii. Nutlets that are light brown with black reticulations. Salvia clevelandii. Nutlets that are light brown with black reticulations.
Salvia clevelandii
Salvia clevelandii. Nutlets that are light brown with black reticulations.
Salvia coccinea. Nutlets with black mottling. Salvia coccinea. Nutlets with black mottling.
Salvia coccinea
Salvia coccinea. Nutlets with black mottling.
Salvia coccinea. Nutlets with a small hilum at the base in a small cavity. Salvia coccinea. Nutlets with a small hilum at the base in a small cavity.
Salvia coccinea
Salvia coccinea. Nutlets with a small hilum at the base in a small cavity.

Salvia columbariae. Nutlets with a small hilum at the base. Salvia columbariae. Nutlets with a small hilum at the base.
Salvia columbariae
Salvia columbariae. Nutlets with a small hilum at the base.
Salvia farinacea. Nutlets with dark gray to light yellow with black mottling. Salvia farinacea. Nutlets with dark gray to light yellow with black mottling.
Salvia farinacea
Salvia farinacea. Nutlets with dark gray to light yellow with black mottling.
Salvia farinacea. Nutlets with a rounded dorsal side. Salvia farinacea. Nutlets with a rounded dorsal side.
Salvia farinacea
Salvia farinacea. Nutlets with a rounded dorsal side.
Salvia farinacea. Nutlets with a ventral side that are sometimes associated with two flat surfaces. Salvia farinacea. Nutlets with a ventral side that are sometimes associated with two flat surfaces.
Salvia farinacea
Salvia farinacea. Nutlets with a ventral side that are sometimes associated with two flat surfaces.